Drill America
Drill America Cobalt Heavy Duty Split Point Stub Drill Bit 29/32in
Cobalt stub drill bit sized 29/32in with 135-degree split point for self-centering drilling in iron and steel
- TypeDrill Accessories
- Cobalt construction handles hard steel alloys
- Manufactured to Aerospace Standard 907 specifications
- 135-degree split point centers itself automatically
- Reduced thrust eases portable and machine drilling
- Short rugged body fits limited spindle clearance
29/32in Cobalt Stub Drill Bit
This 29/32in cobalt drill bit is built to Aerospace Standard 907 for heavy-duty portable or machine drilling. The 135 degree split point is self-centering and reduces thrust during operation. It targets automotive and construction professionals who need short, rugged construction in limited spindle clearance. The stub length suits screw machine setups where space is restricted.
Capacity and headroom
The bit performs well across a broad range of materials in the iron and steel families. Its cobalt construction provides durability for demanding drilling tasks in those metals. The 135 degree point geometry handles standard drilling loads efficiently. Sizes larger than 1/2in switch to a 118 degree standard point, so this diameter uses the split point design.
Build fit and clearance
The short, rugged construction fits screw machine setups where spindle clearance is limited. It works with portable drills and stationary machines without requiring extra reach. The self-centering point eliminates the need for a centre punch in many applications. California Proposition 65 warnings apply for cancer and reproductive harm risks.
Highlights
- Cobalt construction handles hard steel alloys
- Manufactured to Aerospace Standard 907 specifications
- 135-degree split point centers itself automatically
- Reduced thrust eases portable and machine drilling
- Short rugged body fits limited spindle clearance
Specifications
| Brand | Drill America |
|---|---|
| Type | Drill Accessories |
Questions about this item
Will the 29/32in cobalt bit fit the same drill chuck I use for standard steel bits?
Yes, the 29/32in shank fits any chuck that accepts that diameter, so it works with the chuck you already own.
How can I confirm the 135 degree split point is self-centering once I start drilling?
The bit should begin cutting on contact without wandering, and the split point reduces thrust noticeably compared with a standard point.
Does the package include any cutting fluid or only the single stub drill bit?
Only the single 29/32in cobalt stub drill bit is supplied; cutting fluid or lubricant must be purchased separately.
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