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High-Speed Steel Cutting Kits For Lathes - 5/16'''' Cut-Off Kit - High-Speed Steel Cutting 5/16'''' Cutoff Groover Kit
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$79.99
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SKU: 080000842
Overview
This kit is built for lathe work that calls for turning, threading, profiling, and cut-off operations in a compact setup. It includes a 5/16" square shank bar, a T-15 high speed steel cut-off blade, and the wrench needed for installation, making it a straightforward option for shop use. The tooling is described for slow-speed work and precision interrupted cuts, with applications across stainless steel, Inconel, Monel, exotic metals, and plastics. For users who want a simple cut-off and grooving solution in a small format, it offers the essential components without extra complexity.
Why Hunters Choose the Brownells
Includes 5/16"
Square shank bar for cut-off
Supplied T-15
A T-15 HSS .062" x
Toolholders Are
CNC machined from 4140/4142 steel
Black Oxide
Coating helps resist corrosion on
Kit Includes
7/64" wrench for setup and
Key Features
- Includes one 5/16" square shank bar, 3" long
- Includes one T-15 high speed steel .062" x 3" cut-off blade
- Toolholders and inserts are designed for turning, threading, profiling, and cut-off work
- T-15 HSS inserts are hardened to Rc 65-67 and finish ground on all sides
- Square shank toolholders are CNC machined from 4140/4142 steel bar stock
- Black oxide coating is specified to help resist corrosion
- Includes a 7/64" wrench
Best Used For
- For lathe users needing a compact 5/16-inch cut-off setup for turning and grooving work.
- For machinists working with stainless steel, Inconel, Monel, exotic metals, or plastics.
- For precision jobs involving interrupted cuts and controlled slow-speed machining.
- For shops wanting a kit with a square-shank toolholder, cut-off blade, and wrench included.
Specifications
| Bar Overall Length | 3" |
|---|---|
| Bar Shank | 5/16" |
| Blade Finish | black oxide coated |
| Includes Wrench | 7/64" wrench |
| Insert Dimensions | .062" x 3" |
| Insert Hardness | Rc 65-67 |
| Insert Material | T-15 High Speed Steel (HSS) |
| Toolholder Hardness | Rc 48-50 |
| Toolholder Material | 4140/4142 steel bar stock |
Pros
- Includes a 5/16" square shank bar for cut-off work.
- Supplied with a T-15 HSS .062" x 3" cut-off blade.
- Toolholders are CNC machined from 4140/4142 steel bar stock.
- Black oxide coating helps resist corrosion on the toolholder.
- Kit includes a 7/64" wrench for setup and adjustment.
Considerations & Trade-offs
- This kit is configured specifically for 5/16" square-shank cut-off work, so it is not a general-purpose lathe tooling set for every turning or threading task.
- The included cut-off blade is .062" x 3", which favors fine cut-off work but may not suit users looking for a wider or heavier blade option.
- The description emphasizes slow-speed performance, so it is best matched to that use case rather than high-speed machining.
- It includes one bar, one cut-off blade, and a 7/64" wrench, so additional tooling or inserts would need to be sourced separately for broader shop use.
Suggested Comparisons
- Lathe toolholder and insert kits
- Cut-off and grooving tools
- Turning and threading tool kits
- Boring bar accessories
Suggested Accessories
- Replacement cut-off blades
- Toolholder wrench
- Lathe tool holders
- Metalworking cutting fluid
Frequently Asked Questions
What is included in this cut-off kit?
The kit includes one 5/16" square shank bar, 3" long, one T-15 high speed steel .062" x 3" cut-off blade, and a 7/64" wrench.
What types of work 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 black oxide coated.
Does the product listing specify the exact fit for a particular lathe model?
No. The provided data lists the shank size and overall bar length, but it does not specify compatibility with any particular lathe model.