Westward
Westward 4WZX1 Lathe Tool Blank Cobalt 1/2 in 4 in 15° Bevel
Cobalt lathe tool blank with a 15° bevel for right- and left-hand turning
- TypeHole, Drill, Bore & Wire Gauges
- Cobalt alloy resists wear for longer tool life
- 15° bevel angle supports precise left and right-hand turning
- 4 in length fits standard lathe tool holders
- 1/2 in square shank provides secure clamping rigidity
- High-speed steel with 5% cobalt handles high-heat machining
Lathe tool blank with 15° bevel
This cobalt lathe tool blank measures 4 in overall length with a 1/2 in square cross-section. The 15° bevel angle suits right-hand and left-hand turning operations. It is sold as a single blank for custom grinding.
Verify lathe toolpost clearance
Check that your toolpost or quick-change holder accepts a 1/2 in square shank before ordering. Ensure the 4 in length fits within your lathe's swing and carriage travel limits. The 15° bevel requires adequate tool-rest positioning for both cutting directions.
Replaces worn HSS blanks
This blank upgrades from standard high-speed steel when longer edge life in abrasive materials is needed. The cobalt content improves hot hardness for sustained cuts. The improvement is worthwhile when tool-change frequency slows production.
Highlights
- Cobalt alloy resists wear for longer tool life
- 15° bevel angle supports precise left and right-hand turning
- 4 in length fits standard lathe tool holders
- 1/2 in square shank provides secure clamping rigidity
- High-speed steel with 5% cobalt handles high-heat machining
Specifications
| Brand | Westward |
|---|---|
| Type | Hole, Drill, Bore & Wire Gauges |
Questions about this item
Does the 1/2 in by 4 in cobalt lathe tool blank arrive ready to mount or are additional holders required?
The blank is supplied as a single beveled cobalt bar measuring 1/2 in wide, 1/2 in high and 4 in long with a 15 degree bevel for right or left hand use; no holder, clamp or extra hardware is included.
When would a machinist choose this 15 degree bevel blank over other angles?
A 15 degree bevel suits general purpose turning on a variety of materials and works for both right and left hand operations, making it a versatile starting point before grinding a custom profile.
How does the 5 percent cobalt content affect tool life when the blank is ground and used in a lathe?
The 5 percent cobalt raises hot hardness and wear resistance compared with standard high speed steel, so the finished tool holds a sharp edge longer during extended cuts.
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