USPOT® Back Spotfacing & Counterboring Tool | NOGA MT

NOGA MT · UBACK SYSTEM · USPOT

USPOT® Back Spotfacing
& Counterboring Tool

Name: USPOT® Back Spotfacing & Counterboring Tool
Brand: NOGA MT

Machine hidden rear faces through the existing pilot hole — without flipping the workpiece. USPOT is a semi-standard solution customized to the customer's specific feature, combining an application-specific flat-bottom insert with the coolant-actuated UBACK UX tool-holder for repeatable CNC back spotfacing and counterboring.

CONFIGURE USPOT →CHECK SIZE RANGE TECHNICAL CENTER ↗

CNC AUTOMATIONHYDRAULIC INSERT ACTUATIONBACK SPOTFACE / COUNTERBORESEMI-STANDARD CUSTOM SOLUTIONINTERRUPTED CUTS

USPOT KEY TECHNICAL FACTS

Back Counterbore / Spotfacing at a Glance

Use these values for fast application screening. Final holder and insert selection should be verified in the USPOT configurator below.

Application: Back counterboring / spotfacing
Pilot-Hole Range: Ø8–25 mm / 0.315–0.984″
Counterbore / Spotface ØD Range: Ø8.5–57.5 mm / 0.335–2.264″
Interrupted Cuts: Supported for suitable application geometries
Pressure Actuation: Internal coolant, emulsion or air
Minimum Pressure: 6 bar / 90 PSI
ØD Counterbore / Spotface Tolerance: ±0.1 mm / ±0.004″
Tool-Holder Family: UBACK UX / DURASHIELD
Solution Type: Semi-standard solution customized to the customer's feature

Primary compatibility checks: pilot-hole length L ≤ RFC, requested counterbore / spotface diameter ØD must remain within the selected holder / insert limit, and the USPOT insert series must match the UX holder series. For interrupted cuts, verify rigidity, insert engagement and cutting conditions before production.

QUICK ACCESS

Start with the Application — Not the Catalog Table

Start with the application and configurator, then use the technical facts, range, holder data and coding references for verification.

ƒx

Configure USPOT

Enter pilot diameter, ØD, pilot-hole length, radius and material. Match the UX holder and generate the insert designation.

OPEN CONFIGURATOR →

Check the Range

See the B–G series, pilot-hole ranges, holder maximum ØD values and RFC capacity before configuring.

VIEW RANGE →

Selection Logic

Follow the four checks that determine holder, insert geometry and compatibility.

HOW TO SELECT →

Technical Center

Programming, insert replacement, cooling configurations, cutting data, chip-formers and coatings.

OPEN TECHNICAL INFO ↗

USPOT APPLICATION TYPES

Back Spotfacing & Counterboring Across Different Workpiece Geometries

USPOT reaches hidden rear faces through an existing pilot hole. The examples below show continuous and selected interrupted rear-surface geometries and illustrate why a foldable pressure-actuated insert is useful when the back surface cannot be reached conventionally.

UBACK USPOT rear-side application geometry example 1

Internal Rear-Face Access

Reach a hidden rear surface through the pilot hole without turning or repositioning the workpiece.

UBACK USPOT rear-side application geometry example 2

Restricted-Access Geometry

Use the foldable insert where conventional front-side tooling cannot physically reach the machining surface.

UBACK USPOT rear-side application geometry example 3

Deep / Recessed Back Surface

Match pilot-hole length to holder RFC and reach the required rear-side machining plane inside deeper components.

UBACK USPOT rear-side application geometry example 4

Complex Internal Access

Apply rear spotfacing or counterboring where part geometry makes a conventional straight tool approach impractical.

UBACK USPOT rear-side application geometry example 5

Interrupted Rear Surfaces

USPOT can be applied to selected interrupted rear surfaces when rigidity, insert engagement and cutting conditions are suitable.

OPERATING PRINCIPLE

How the UBACK Hydraulic Mechanism Works with USPOT

The insert opening and closing mechanism is actuated through the spindle using coolant, emulsion or air. Minimum pump pressure is 6 bar / 90 PSI. The animation below shows the fold-out concept directly.

UBACK MECHANISM VIDEO

Watch the UBACK Insert Open, Cut & Retract

Watch the hydraulic UBACK mechanism directly: the insert passes through the pilot hole, deploys below the workpiece for rear-side machining, and retracts for safe exit.

UBACK hydraulic mechanism - insert open, cut and retract video preview

AUTO-PLAYS WHEN VISIBLE

Hydraulic actuation: minimum coolant / air pressure 6 bar (90 PSI). Verify the machine sequence and application before production.

APPLICATION CAPABILITY

Interrupted Cuts Are Supported

USPOT is not limited to a completely continuous rear surface.

✓ INTERRUPTED-CUT CAPABILITY

Machine Rear Faces with Openings or Partial Surfaces

USPOT can perform interrupted back spotfacing and counterboring when the cutter crosses gaps, slots, openings or other non-continuous sections of the rear face.

1Same UBACK mechanism: the insert remains hydraulically actuated while machining the rear feature.

2Application dependent: use stable workholding, the correct insert geometry and appropriate cutting data for the interrupted engagement.

3Configure first: verify pilot diameter, ØD, L ≤ RFC and holder/insert series before programming the cycle.

Interrupted-cut performance depends on the actual workpiece geometry, material, rigidity and cutting conditions. Validate the final setup before production.

Enter with the Insert Folded

Position above the pilot hole and move through the bore with the insert retracted to protect the pilot-hole surface.

Move Below the Workpiece

Use the holder FL / RFC geometry to reach a safe position below the rear face before the cutting move.

Actuate & Machine

Internal coolant pressure actuates the insert. Approach the rear face and machine the required spotface / counterbore depth.

Close & Retract

Retract to the safe position, turn coolant pressure off as required by the cycle, fold the insert and exit through the pilot hole.

Programming detail: the UBACK cycle uses FL and LTB positioning, coolant ON/OFF commands and controlled approach / cutting moves. The configurator below generates controller-specific CNC code, which should be verified on the actual machine before production.

PRIMARY SELECTION TOOL

USPOT Configurator & G-Code Generator

Build the application first. The configurator validates the pilot-hole range, calculates the permitted ØD, checks L ≤ RFC, recommends chip-former and coating, matches the correct UX tool-holder and produces the USPOT designation and CNC program.

Insert Type

Insert Configurator

Insert & Tool Match

CNC Program

Step 1: Select Insert Type

Choose the UBACK application you need. The configurator will build the exact insert designation and match the correct UX tool-holder.

⭕

USPOT US

Back counterboring / spotfacing insert.
Flat-bottom recess with defined ØD and corner radius R.
Semi-standard — built to your application.

📐

UCHAMF UC

Back countersinking / chamfering insert.
Standard 82° & 90° angles, or special angles on request.
Standard SKUs available for 82°/90°.

Click an insert type to continue — the configurator opens automatically.

Step 2: Insert Configurator

Enter your application dimensions. All designation codes are generated in metric.

⚡ Quick Fill from Insert Designation (optional)

The form fills itself as you type. Enter a full designation, or just a NOGA SKU (e.g. US2003) to pull the insert straight from the ERP database.

⚙ Configuration Parameters

📏 Unit System mm inch

Pilot-hole Diameter Ød *Range: 8.0–25.0 mm

Counterbore/Spotface ØD *

Pilot-hole Length L *

Distance the insert travels through the part — must be ≤ RFC of the tool-holder.

Corner Radius RRange: 0.1–3.0 mm

Default R = 0.4 mm (.01575″) → code R04

Countersink Angle α° *Standard: 82°, 90°

82° and 90° are stocked standards with PL-NCT; other angles are produced upon order.

ISO Material Group *

Material Hardness (HRC) — optional

Chip-Former

Auto-suggested from material

Coating (optional):

Select a material group to see the suggested coating

📐 Technical Diagram

Loading 3D engine…

⚠ 3D view unavailable — check your internet connection (Three.js). The 2D drawing still works.

Drag to rotate · scroll to zoom · right-drag to pan

ⓘ Legend

Step 3: Your Insert & Tool-Holder

Matched configuration based on your application. The insert series always matches the tool-holder series.

🔩 Insert

—

SKU:UPON ORDER

Designation Breakdown

🛠 UX Tool-Holder

—

SKU:—

Step 4: Generate CNC Program

Build the back-machining cycle for your controller using the matched tool-holder and insert.

CNC Controller

SINUMERIK

FANUC

Cutting Conditions

Cutting Conditions *

Material Group (from configurator)

📊 Recommended Cutting Data

Cutting Speed

m/min

Spindle Speed

RPM

Feed Rate

mm/min

Operation Parameters

Safe Z Height (mm) *

Distance above material for safe traverse

Part Bottom Hole Depth (mm)

Depth of through-hole from part bottom (usually 0)

⛔

RFC Limit Exceeded!

Counterbore/Countersink Depth (mm) *

Final depth of the back operation from the bottom face

Coolant Wait Time (sec)

Time to wait for coolant pressure (open/close insert)

Approach Feed Rate (mm/min)

Feed rate for non-cutting moves

Cutting Feed Rate (mm/min)

Auto-filled from cutting data — adjust as needed

Generated G-Code Program

NOGA MT UBACK Configurator & G-Code Generator · version —

SIZE RANGE

USPOT / UX Series at a Glance

The range is organized into six series. Each series groups three nominal pilot-hole sizes and defines the matching holder family, RFC capacity and maximum supported USPOT counterbore diameter.

Series	Pilot-Hole Rangemm / inch	USPOT ØDmax Range by Holdermm / inch	Standard UX Holders	RFCmm / inch
B	Ø8–10 mmØ0.3150–0.394″	Ø18.5–23 mmØ0.728–0.906″	UX2080 / UX2090 / UX2100	43 mm1.693″
C	Ø11–13 mmØ0.433–0.512″	Ø26–30 mmØ1.024–1.181″	UX3110 / UX3120 / UX3130	52 mm2.047″
D	Ø14–16 mmØ0.551–0.630″	Ø32.5–37 mmØ1.280–1.457″	UX4140 / UX4150 / UX4160	72.5 mm2.854″
E	Ø17–19 mmØ0.669–0.748″	Ø39.5–44 mmØ1.555–1.732″	UX5170 / UX5180 / UX5190	76.5 mm3.012″
F	Ø20–22 mmØ0.787–0.866″	Ø46–50.5 mmØ1.811–1.988″	UX6200 / UX6210 / UX6220	76.5 mm3.012″
G	Ø23–25 mmØ0.906–0.984″	Ø53–57.5 mmØ2.087–2.264″	UX7230 / UX7240 / UX7250	72 mm2.835″

ØD LimitThe configurator uses the smaller of the insert design limit and the selected holder catalog ØDmax.

Pilot-Hole LengthThe required pilot-hole length L must be less than or equal to the selected holder RFC.

Series MatchThe USPOT insert series and UX tool-holder series must always match.

SELECTION WORKFLOW

How to Select the Correct UX Holder and USPOT Insert

Keep the process simple: holder first, then the insert geometry, then compatibility checks.

Start with Pilot Ød

Select the UX holder whose nominal / supported pilot range fits your through hole.

Example: Ød = 8.7 mm → Series B / UX2080 family

Define the Back Feature

Enter the required spotface / counterbore ØD, pilot-hole length L and corner radius R.

Check L ≤ RFC

Select Cutting Geometry

Choose the chip-former and coating / surface treatment for the workpiece material. Use the Insert Technology guide below or the configurator recommendation.

PL / ML / HL + coating

Verify Series & Designation

Confirm the insert series matches the UX holder and use the generated US designation for quotation / ordering.

US-d087-D176-B-R02-ML-NCT

USPOT INSERT TECHNOLOGY

Chip-Formers, Coatings & Surface Treatments

The chip-former controls the cutting-edge geometry; the coating or surface treatment controls heat resistance, wear behavior, friction and material adhesion. Use this section to understand the codes used by the USPOT configurator and insert designation.

1. Select the chip-formerChoose PL, ML or HL according to the material group and cutting-edge strength required for the application.

2. Select coating / treatmentThen select the coating or polishing treatment according to heat, wear, oxidation, abrasion and material-adhesion conditions.

PLPositive Cutting Land

PL — Positive Cutting Land

Suitable for all-round purpose and ISO P, M, K, N and S materials, as well as composite materials.

PMKNSC

MLModerate Cutting Land

ML — Moderate Cutting Land

Suitable for ISO P, M, K, S and H materials.

PMKSH

HLNegative Cutting Land

HL — Negative Cutting Land

Suitable for ISO P, M, K, S and H materials.

PMKSH

AVAILABLE OPTIONS

Coating Types & Surface Treatments

Comparison of NOGA coating / surface-treatment codes, key characteristics, typical applications and ISO material-group suitability.

NOGA's Code	Coating	Key Features	Applications	Industries	Material Examples	ISO GROUP
NOGA's Code	Coating	Key Features	Applications	Industries	Material Examples	P	M	K	N	S	H
NCT	TiAlN	Excellent thermal stability, oxidation resistance, and wear resistance.	High-speed cutting and general-purpose machining. Works in wet & dry conditions.	Aerospace, Automotive, General Engineering	AISI 304, 42CrMo4, Grey Cast Iron (GG), Ti6Al4V	✓	✓	✓	×	✓	✓
NCD	TiAlSiN	Very high hardness, extreme oxidation resistance (>1200°C). Excels in dry machining at high speeds. Suitable for hardened steels >45 Rc.	High-performance machining in demanding environments.	Aerospace, Automotive, Die & Mold	Inconel 718, AISI 4140, Ti6Al4V, Hastelloy	✓	✓	×	×	✓	✓
NCA	AlTiSiN	High hardness, thermal stability, and wear resistance. Works well in dry, high-speed cutting. Suitable for hardened steels >45 Rc.	High-speed machining in extreme conditions.	Aerospace, Automotive, Precision Engineering	AISI 316, AISI H13, Hastelloy	✓	✓	×	×	✓	✓
NCN	AlCrN	High oxidation resistance (to 1100°C), toughness, abrasion resistance.	General machining in abrasive / wet conditions.	Automotive, Aerospace, Die & Mold	AISI 304, AISI 1045, Grey Cast Iron (GG), AL6061, Die Steels	✓	✓	✓	✓	×	×
NCW	AlTiN	High hardness, wear resistance, thermal stability up to 1100°C.	Heavy-duty machining and high-speed cutting. Dry & abrasive conditions.	Aerospace, Automotive, Heavy Engineering	AISI 4340, M2 HSS, Grey Cast Iron (GG)	✓	✓	✓	×	✓	×
NCB	TiB₂	Excellent thermal stability, hardness, and very high conductivity. Prevents material adhesion and BUE.	High-speed machining of non-ferrous metals.	Aerospace, Automotive, Electronics	AL7075, 6061-T6, Copper, Magnesium Alloys (AZ31), SiC composites	×	×	×	✓	✓	×
POL	Polishing (Surface Treatment)	Removes scratches, burrs and micro-defects. Produces smooth finish and reduces friction.	High-speed finishing of non-ferrous materials. Improves MRR and surface aesthetics.	Aerospace, Automotive	AL7075, 6061-T6, Copper, Magnesium Alloys (AZ31)	×	×	×	✓	×	×

P SteelM Stainless SteelK Cast IronN Non-FerrousS Heat-Resistant AlloysH Hardened Materials

Selection note: This guide explains the available geometry and surface-treatment codes. Use the USPOT configurator and application conditions to establish the starting recommendation, then verify performance under the actual workpiece material, rigidity, interrupted-cut condition and coolant setup.

STANDARD UX TOOL-HOLDERS

Full USPOT Tool-Holder Reference

Use the configurator for selection; use this Metric / Inch table for dimensional verification, spare parts and setup references. LTB1 depends on the USPOT insert size and the listed value is the maximum permitted value.

USPOT / UX Dimensional Drawing

Reference drawing for the USPOT insert mounted in the UBACK UX tool-holder. Use it together with the table dimensions below.

CLICK TO ENLARGE

USPOT insert mounted in UBACK UX tool-holder dimensional drawing

Search works with both metric and inch values. Example: UX4160, Ø16, 0.630, RFC 72.5, 2.854, Series D.

Show / hide complete Metric / Inch holder table

Ød minmm / inch	SKU	Description	Series	ØDS h6mm / inch	FLmm / inch	RFCmm / inch	Hmm / inch	Lmm / inch	L1mm / inch	LTB1 maxmm / inch	USPOT ØDmaxmm / inch	Piston Plug	Insert Screw
Ø8 mmØ0.315″	UX2080	UX-d080-B-C16-H62-L115	B	Ø16 mmØ0.630″	17 mm0.669″	43 mm1.693″	62 mm2.441″	115 mm4.528″	53 mm2.087″	7.3 mm0.287″	Ø18.5 mmØ0.728″	UX0011 / M5×6	UX0005 / M2.5×0.35×7B
Ø9 mmØ0.354″	UX2090	UX-d090-B-C16-H62-L115	B	Ø16 mmØ0.630″	17.8 mm0.701″	43 mm1.693″	62 mm2.441″	115 mm4.528″	53 mm2.087″	7.3 mm0.287″	Ø21 mmØ0.827″	UX0011 / M5×6	UX0005 / M2.5×0.35×7B
Ø10 mmØ0.394″	UX2100	UX-d100-B-C16-H62-L115	B	Ø16 mmØ0.630″	18.8 mm0.740″	43 mm1.693″	62 mm2.441″	115 mm4.528″	53 mm2.087″	7.3 mm0.287″	Ø23 mmØ0.906″	UX0011 / M5×6	UX0005 / M2.5×0.35×7B
Ø11 mmØ0.433″	UX3110	UX-d110-C-C16-H80-L133	C	Ø16 mmØ0.630″	27 mm1.063″	52 mm2.047″	80 mm3.150″	133 mm5.236″	53 mm2.087″	12.4 mm0.488″	Ø26 mmØ1.024″	UX0011 / M5×6	UX0006 / M3×0.35×10C
Ø12 mmØ0.472″	UX3120	UX-d120-C-C16-H80-L133	C	Ø16 mmØ0.630″	27.3 mm1.075″	52 mm2.047″	80 mm3.150″	133 mm5.236″	53 mm2.087″	12.4 mm0.488″	Ø28 mmØ1.102″	UX0011 / M5×6	UX0006 / M3×0.35×10C
Ø13 mmØ0.512″	UX3130	UX-d130-C-C16-H80-L133	C	Ø16 mmØ0.630″	28 mm1.102″	52 mm2.047″	80 mm3.150″	133 mm5.236″	53 mm2.087″	12.4 mm0.488″	Ø30 mmØ1.181″	UX0011 / M5×6	UX0006 / M3×0.35×10C
Ø14 mmØ0.551″	UX4140	UX-d140-D-C20-H105-L158	D	Ø20 mmØ0.787″	32.5 mm1.280″	72.5 mm2.854″	105 mm4.134″	158 mm6.220″	53 mm2.087″	14 mm0.551″	Ø32.5 mmØ1.280″	UX0012 / M6×6	UX0007 / M3×0.35×13D
Ø15 mmØ0.591″	UX4150	UX-d150-D-C20-H105-L158	D	Ø20 mmØ0.787″	32.5 mm1.280″	72.5 mm2.854″	105 mm4.134″	158 mm6.220″	53 mm2.087″	14 mm0.551″	Ø34.5 mmØ1.358″	UX0012 / M6×6	UX0007 / M3×0.35×13D
Ø16 mmØ0.630″	UX4160	UX-d160-D-C20-H105-L158	D	Ø20 mmØ0.787″	32.5 mm1.280″	72.5 mm2.854″	105 mm4.134″	158 mm6.220″	53 mm2.087″	14 mm0.551″	Ø37 mmØ1.457″	UX0012 / M6×6	UX0007 / M3×0.35×13D
Ø17 mmØ0.669″	UX5170	UX-d170-E-C20-H115-L170	E	Ø20 mmØ0.787″	38.5 mm1.516″	76.5 mm3.012″	115 mm4.528″	170 mm6.693″	55 mm2.165″	16.5 mm0.650″	Ø39.5 mmØ1.555″	UX0012 / M6×6	UX0008 / M3×0.35×16E
Ø18 mmØ0.709″	UX5180	UX-d180-E-C20-H115-L170	E	Ø20 mmØ0.787″	38.5 mm1.516″	76.5 mm3.012″	115 mm4.528″	170 mm6.693″	55 mm2.165″	16.5 mm0.650″	Ø41.5 mmØ1.634″	UX0012 / M6×6	UX0008 / M3×0.35×16E
Ø19 mmØ0.748″	UX5190	UX-d190-E-C20-H115-L170	E	Ø20 mmØ0.787″	38.5 mm1.516″	76.5 mm3.012″	115 mm4.528″	170 mm6.693″	55 mm2.165″	16.5 mm0.650″	Ø44 mmØ1.732″	UX0012 / M6×6	UX0008 / M3×0.35×16E
Ø20 mmØ0.787″	UX6200	UX-d200-F-C25-H120-L175	F	Ø25 mmØ0.984″	43.5 mm1.713″	76.5 mm3.012″	120 mm4.724″	175 mm6.890″	55 mm2.165″	18.8 mm0.740″	Ø46 mmØ1.811″	UX0013 / M8×6	UX0009 / M4×0.5×19F
Ø21 mmØ0.827″	UX6210	UX-d210-F-C25-H120-L175	F	Ø25 mmØ0.984″	43.5 mm1.713″	76.5 mm3.012″	120 mm4.724″	175 mm6.890″	55 mm2.165″	18.8 mm0.740″	Ø48.5 mmØ1.909″	UX0013 / M8×6	UX0009 / M4×0.5×19F
Ø22 mmØ0.866″	UX6220	UX-d220-F-C25-H120-L175	F	Ø25 mmØ0.984″	43.5 mm1.713″	76.5 mm3.012″	120 mm4.724″	175 mm6.890″	55 mm2.165″	18.8 mm0.740″	Ø50.5 mmØ1.988″	UX0013 / M8×6	UX0009 / M4×0.5×19F
Ø23 mmØ0.906″	UX7230	UX-d230-G-C25-H120-L175	G	Ø25 mmØ0.984″	48 mm1.890″	72 mm2.835″	120 mm4.724″	175 mm6.890″	55 mm2.165″	21 mm0.827″	Ø53 mmØ2.087″	UX0013 / M8×6	UX0010 / M4×0.5×21G
Ø24 mmØ0.945″	UX7240	UX-d240-G-C25-H120-L175	G	Ø25 mmØ0.984″	48 mm1.890″	72 mm2.835″	120 mm4.724″	175 mm6.890″	55 mm2.165″	21 mm0.827″	Ø55.5 mmØ2.185″	UX0013 / M8×6	UX0010 / M4×0.5×21G
Ø25 mmØ0.984″	UX7250	UX-d250-G-C25-H120-L175	G	Ø25 mmØ0.984″	48 mm1.890″	72 mm2.835″	120 mm4.724″	175 mm6.890″	55 mm2.165″	21 mm0.827″	Ø57.5 mmØ2.264″	UX0013 / M8×6	UX0010 / M4×0.5×21G

No UX tool-holder matches this search. Try a SKU, series letter, pilot diameter, RFC value, ØDmax or spare-part code.

Counterbore ToleranceSpecified achieved ØD tolerance: ±0.1 mm / 0.004″.

Tool + InsertUX tool-holders and USPOT inserts are sold separately.

Spare PartsStandardized replacement items include hex key, insert replacement pin, clamping screw and piston plug.

IDENTIFICATION & ORDERING

Understand the Holder and USPOT Insert Codes

The configurator creates the designation automatically. These diagrams remain useful as a visual reference for purchasing, engineering drawings and quotations.

UX Tool-Holder Coding

Holder designation communicates pilot diameter, series, shank size, working height and overall length.

USPOT Insert Coding

Insert designation identifies pilot diameter, counterbore diameter, series, radius, chip-former and coating.

ORDERING EXAMPLE

AISI 4340 · 42 HRC

Pilot HoleØ8.7 mm / 0.343″

Spotface ØDØ17.6 mm / 0.693″

Corner RadiusR0.2 mm

MaterialAISI 4340 / 42 HRC

RECOMMENDED TOOL-HOLDERUX2080 · UX-d080-B-C16-H62-L115

USPOT INSERT DESIGNATIONUS-d087-D176-B-R02-ML-NCT

USPOT VIDEOS

Watch USPOT & UBACK in Action

Inline previews let visitors understand the machining concept without leaving the product page. The USPOT product demonstration is lazy-loaded so it does not delay the initial page render. The UBACK mechanism video is shown in the Operating Principle section above.

USPOT by NOGA MT - High-Accuracy Spot Facing with Hydraulic Control video preview

AUTO-PLAYS WHEN VISIBLE

USPOT VIDEO

USPOT by NOGA MT | High-Accuracy Spot Facing with Hydraulic Control

Product demonstration focused on USPOT hydraulic operation and precision rear-side spotfacing.

UX TOOL-HOLDER PLATFORM

DURASHIELD Tool-Holders

DURASHIELD identifies NOGA MT's premium holder platform. The UX holder family uses a passivated construction designed for corrosion resistance, structural integrity and demanding industrial service.

HIGH STRENGTHTOUGHNESSWEAR RESISTANCEMACHINABILITYHEAT RESISTANCECORROSION RESISTANCE

FAQ

USPOT Selection Questions

Can USPOT machine a back counterbore without turning or flipping the workpiece?

Yes. USPOT reaches the hidden rear face through the existing pilot hole, allowing CNC back spotfacing or counterboring without turning or flipping the workpiece.

How do I select the correct USPOT insert diameter?

Start with the pilot-hole diameter and select the matching UX holder series. Then enter the required spotface diameter ØD, pilot-hole length L and corner radius R in the configurator. The required L must satisfy L ≤ RFC, ØD must remain within the selected holder / insert limit, and the insert series must match the UX holder series.

What is the maximum back spotface diameter for USPOT?

The maximum depends on the selected UX holder and series. Across the standard USPOT / UBACK range, spotface diameters extend up to Ø57.5 mm / 2.264″. Use the configurator or the Size Range table to verify the exact ØD limit for your pilot-hole diameter and holder.

What is USPOT used for?

USPOT is the UBACK flat-bottom insert solution for CNC back spotfacing and back counterboring through an existing pilot hole.

How is the insert opened and closed?

The UX tool-holder uses spindle coolant pressure to actuate the insert. The system supports coolant, emulsion or air with a minimum pressure of 6 bar / 90 PSI.

What is the most important geometry check?

Confirm that the pilot-hole length L is less than or equal to the selected holder RFC and that the requested ØD is within the holder / insert design limit.

Are USPOT inserts standard products?

USPOT is a semi-standard solution customized to the customer's specific feature. The configurator creates the application-specific designation and matches the corresponding UBACK UX holder series.

What is the ØD counterbore / spotface tolerance?

The product page specifies an achieved counterbore / spotface diameter tolerance of ±0.1 mm / 0.004″.

Where are programming and cutting recommendations?

Use the UBACK Technical Center ↗ for continuous / interrupted-cut programming, insert replacement, cooling configurations, coatings, chip-formers and detailed cutting recommendations.

Can USPOT perform interrupted cuts?

Yes. USPOT can perform interrupted back spotfacing and counterboring when the cutting path crosses gaps, openings, slots or other non-continuous rear surfaces. Final performance depends on the actual geometry, material, setup rigidity and cutting conditions, so the application should be validated before production.

Have the Drawing? Configure USPOT First.

Enter the application dimensions in the configurator to identify the correct UX tool-holder and build the USPOT designation. For special applications, attach the workpiece drawing and material details when requesting a quotation.

OPEN CONFIGURATOR CONTACT NOGA MT ↗