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Brownells

High-Speed Steel Cutting Kits For Lathes - 1/4'''' Turning Kits - High-Speed Steel Cutting 1/4'''' Turning Kit

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Includes Hardened

Steel toolholders and high-speed steel

Supports Turning,

Threading, profiling, and cut-off work

Six T-15

HSS inserts are included, with

Toolholders Are

CNC machined from 4140/4142 steel

Black Oxide

Finish is specified to help

$139.99
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SKU: 080000834

Overview

This turning kit is built for lathe work that calls for toolholders and inserts suited to turning, threading, profiling, and cut-off operations. It includes five 1/4" square toolholders and six T-15 high speed steel inserts, with one extra insert included. The kit is intended for use on stainless steel, Inconel, Monel, exotic metals, and plastics, and the description notes strong slow-speed performance, precision interrupted cuts, and a smooth finish. For users setting up a compact square-shank tooling system, it offers a complete, purpose-driven package without unnecessary extras.

Why Hunters Choose the Brownells

Includes Five

1/4-inch square toolholders and six

Supports Turning,

Threading, profiling, and cut-off work

T-15 Hss

Inserts are hardened to Rc

Toolholders Boring

Black oxide finish

Slow-speed Work,

Precision interrupted cuts, and smooth

Key Features

  • Includes hardened steel toolholders and high-speed steel inserts for turning tasks.
  • Supports turning, threading, profiling, and cut-off work.
  • Six T-15 HSS inserts are included, with one spare.
  • Toolholders are CNC machined from 4140/4142 steel bar stock.
  • Black oxide finish is specified to help resist corrosion.
  • Designed for slow-speed performance and precision interrupted cuts.

Best Used For

  • Hunters and machinists needing turning, threading, profiling, and cut-off capability in one kit
  • Users working with stainless steel, Inconel, Monel, exotic metals, or plastics at slow speeds
  • Shop setups that benefit from five 1/4-inch square toolholders and six inserts, including a spare
  • Operators who want hardened toolholders and finish-ground inserts for precision interrupted cuts
  • Buyers seeking a compact Brownells tooling kit for lathe work and boring-bar applications

Specifications

Applicationsturning, threading, profiling, and cut-off work
Included Inserts Countsix
Included Toolholders Countfive
Insert Angle11Adeg positive
Insert Hole.100
Insert Ic218 IC
Insert ModelTPMW-1.8-1.5-1
Insert Radius.015 radius
Insert Thickness.093
Insert Top Opening130 top opening @ 60Adeg
Inserts Finishfinish ground on all surfaces
Inserts HardnessRc 65-67
Inserts MaterialT-15 High Speed Steel (HSS)
Performance Notesexcellent slow speed performance, precision interrupted cuts, and a smooth finish on stainless steel, Inconel, Monel, exotic metals, and plastics
Spare Insert Includedone spare
Toolholders Finishblack oxide
Toolholders HardnessRc 48-50
Toolholders Material4140/4142 steel
Toolholders Oal3.5"
Toolholders Shank Size.250" square

Pros

  • Includes five 1/4-inch square toolholders and six inserts, with one spare.
  • Supports turning, threading, profiling, and cut-off work in one kit.
  • T-15 HSS inserts are hardened to Rc 65-67 and finish ground on all sides.
  • Toolholders and boring bars use 4140/4142 steel bar stock with black oxide finish.
  • Designed for slow-speed work, precision interrupted cuts, and smooth finishes on select materials.

Considerations & Trade-offs

  • Includes five 1/4" square toolholders and six inserts, so it is a compact kit rather than a full shop-wide turning system.
  • The inserts are T-15 HSS and the kit is described for slow-speed work, precision interrupted cuts, and finishing on specific materials; it is not presented as a general-purpose high-speed solution.
  • Toolholders are black oxide coated for corrosion resistance, but the coating is a finish rather than a substitute for regular care and storage.
  • The set is configured for turning, threading, profiling, and cut-off work, so users needing broader tooling coverage may need additional holders or insert styles.

Suggested Comparisons

  • Lathe toolholder sets
  • High-speed steel turning inserts
  • Threading tool kits
  • Boring bar kits

Suggested Accessories

  • Tool holders and inserts
  • Lathe tooling
  • Turning accessories
  • Threading and profiling inserts

Frequently Asked Questions

What is included in this turning kit?

The kit includes five 1/4" square toolholders and six inserts, including one spare.

What operations is this kit intended for?

According to the product description, the tooling kit is for turning, threading, profiling, and cut-off work.

What materials are the inserts made from?

The inserts are T-15 High Speed Steel (HSS), hardened to Rc 65-67 and finish ground on all sides.

What are the toolholders made from?

The square shank toolholders and boring bars are CNC machined from 4140/4142 steel bar stock, hardened to Rc 48-50, and finished with black oxide.

Are there any limitations or trade-offs to be aware of?

The description emphasizes slow-speed performance and precision interrupted cuts, so this kit is presented for those uses rather than as a general-purpose high-speed cutting setup. No other limitations are stated in the source data.