Cleveland
Cleveland 15-piece 135-degree cobalt drill bit set C00901
A 15-piece cobalt steel drill bit set covering 1/16 to 1/2 inch sizes with 135-degree split points and a metal index case
- 15-piece cobalt set covers 1/16 to 1/2 inch by 1/32 inch steps
- 135-degree split point starts fast and walks less on hard metal
- Cobalt steel resists heat and wear for longer tool life
- Jobber length gives 10xD depth-to-diameter ratio for deeper holes
- Metal index case keeps bits organised and protected to ASME B94.11M-1993 standard
Cleveland 15-piece cobalt drill bit set
This Cleveland C00901 set contains 15 jobber drill bits made from cobalt steel with a straw/bronze finish. The bits feature a 135-degree split point for self-centering and reduced walking. They cover fractional inch sizes from 1/16 in. to 1/2 in. by 1/32 in. increments. A metal drill index case is included for organisation.
Suited to metalworkers needing heat-resistant bits
These cobalt steel bits suit professionals drilling stainless steel, cast iron and other hard alloys where high-speed steel dulls quickly. The 135-degree point angle and split point design improve accuracy in tough materials. Buyers who only drill wood, plastic or soft aluminium will not benefit from the cobalt premium. Those requiring metric sizes or longer series lengths must look elsewhere.
Capacity covers 1/16 in. to 1/2 in. fractional range
The 15-piece set spans the common fractional range with 1/32 in. steps, handling general maintenance and machine shop tasks. A 10xD depth-to-diameter ratio supports deeper holes in a single pass. The set runs out at 1/2 in. maximum diameter; larger holes need separate tooling. ASME B94.11M-1993 compliance confirms dimensional standards.
Highlights
- 15-piece cobalt set covers 1/16 to 1/2 inch by 1/32 inch steps
- 135-degree split point starts fast and walks less on hard metal
- Cobalt steel resists heat and wear for longer tool life
- Jobber length gives 10xD depth-to-diameter ratio for deeper holes
- Metal index case keeps bits organised and protected to ASME B94.11M-1993 standard
Specifications
| Brand | CLEVELAND |
|---|
Questions about this item
What type of drill chuck is required to hold the 1/16 in. to 1/2 in. shank diameters in this 15-piece set?
The set includes fractional inch bits with shank diameters ranging from 1/16 in. to 1/2 in., so a drill chuck that accommodates at least a 1/2 in. capacity is needed to hold the largest bit.
Can the cobalt steel bits in this set be used effectively in a standard drill press originally used for high-speed steel bits?
Yes, the cobalt steel bits share the same 135-degree split point geometry and fractional inch sizing as standard jobber bits, allowing direct use in existing drill presses without setup changes.
How can I verify the bits meet the ASME B94.11M-1993 standard after unpacking the metal index case?
The bits feature a straw/bronze finish, 135-degree split points, and fractional inch markings consistent with the ASME B94.11M-1993 standard referenced for this 15-piece jobber drill set.
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