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ULTRA-DEX USA Indexable Boring Bar: S20U MTFNR3 (MPN 957-000-421) - Indexable Boring Bars
ULTRA-DEX USAIndexable Boring Bars

ULTRA-DEX USA Indexable Boring Bar: S20U MTFNR3 (MPN 957-000-421)

SKU 3G-OTH-220560

Brand
ULTRA-DEX USA
Item
Indexable Boring Bar: S20U MTFNR3
Category
Indexable Boring Bars
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Technical Specifications

ULTRA-DEX USA
Manufacturer Part Number
957-000-421
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ULTRA-DEX USA Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the ULTRA-DEX USA Indexable Boring Bar S20U MTFNR3 used for?

The ULTRA-DEX USA Indexable Boring Bar S20U MTFNR3 is used for precision internal turning and boring operations in metalworking. It is designed for enlarging holes, achieving tight tolerances, and creating smooth finishes in industries like automotive, aerospace, and general machining.

What are the specifications of the ULTRA-DEX USA Indexable Boring Bar S20U MTFNR3?

The ULTRA-DEX USA Indexable Boring Bar S20U MTFNR3 has the model designation S20U MTFNR3 and manufacturer part number 957-000-421. It is an indexable boring bar designed for use with replaceable cutting inserts, suitable for steel, stainless steel, and cast iron workpieces.

Where to buy the ULTRA-DEX USA Indexable Boring Bar S20U MTFNR3 worldwide?

You can source the ULTRA-DEX USA Indexable Boring Bar S20U MTFNR3 worldwide through 3G Electric. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to select the correct ULTRA-DEX USA Indexable Boring Bar for your application?

To select the correct ULTRA-DEX USA Indexable Boring Bar, match the bar diameter and shank style to your machine tool holder. Consider the workpiece material and required bore depth. The S20U MTFNR3 is a common choice for general boring; consult ULTRA-DEX USA's catalog for insert geometry recommendations.

Used in

Common applications for ULTRA-DEX USA
General turning of steel components — ULTRA-DEX USA CNMG 322 UD51 diamond inserts for roughing and finishing on CNC lathes.
Grooving operations in automotive parts — ULTRA-DEX USA NG 3R cutting unit head with MH32 NER3-CFT insert for precision grooves.
Threading of stainless steel fittings — ULTRA-DEX USA NG 4R cutting unit head with MH40 NEL4-CFT insert for consistent thread profiles.
Profiling of cast iron housings — ULTRA-DEX USA TNMG431 UD21 triangle inserts for multi-directional turning passes.
Finishing of non-ferrous alloys — ULTRA-DEX USA CDGW 1.5105 UD52 diamond inserts for low surface roughness on aluminum parts.
Small-diameter boring of hardened steel — ULTRA-DEX USA CCGW32.52-2 diamond inserts for internal turning with tight tolerances.

ULTRA-DEX USA Products

3G Electric supplies ULTRA-DEX USA indexable boring bars. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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