Westward
Westward 4WZW9 Lathe Tool Blank HSS 5% Cobalt 15° Bevel
Cobalt-alloy HSS lathe tool blank with a 15° bevel for right- or left-hand turning
- TypeHole, Drill, Bore & Wire Gauges
- HSS with 5% cobalt keeps the edge sharp longer
- 15° bevel gives clean cuts on left and right passes
- 3 in blank provides solid grip for steady turning
- Square 3/8 in section fits standard tool holders
Cobalt HSS lathe tool blank
This Westward tool blank is made from high-speed steel with five percent cobalt for improved wear resistance. The blank measures three-eighths of an inch square by three inches long and features a 15-degree bevel on both right and left faces. It is supplied new and ready for grinding to the required profile.
Machinists needing a cobalt blank for custom
The square cross-section and 15-degree bevel suit general-purpose lathe work where the user grinds their own geometry. Buyers who need a pre-ground tool with a specific chip-breaker or radius should look elsewhere. Those requiring a different shank size, bevel angle, or material grade will not find them in this blank.
Highlights
- HSS with 5% cobalt keeps the edge sharp longer
- 15° bevel gives clean cuts on left and right passes
- 3 in blank provides solid grip for steady turning
- Square 3/8 in section fits standard tool holders
Specifications
| Brand | Westward |
|---|---|
| Type | Hole, Drill, Bore & Wire Gauges |
Questions about this item
What size tool holder do I need for the 3/8 in blank?
The blank measures 3/8 in wide by 3/8 in high, so a standard 3/8 in square tool post slot or a holder bored for that cross-section will accept it directly.
Can I use this 15° bevel blank on a manual lathe that normally takes zero-rake bits?
Yes. The 15° bevel provides a positive rake that reduces cutting forces on a manual lathe, and the HSS 5% cobalt material handles the intermittent cuts typical of older machines without chipping.
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