KnKut 21KK35 M35 Cobalt Jobber Drill Set, 21 Pieces
KnKut 21KK35 is the M35 cobalt jobber-length option covering twenty-one fractional sizes through 3/8 inch. Compare its material, size ceiling and larger-bit shank geometry when choosing between similar-looking KnKut sets.
Specifications and included details
- 21 fractional sizes from 1/16 to 3/8 inch by 64ths.
- M35 cobalt high-speed steel and straw finish.
- Jobber-length bits with 135-degree split points.
- Hex shanks on sizes 3/16 inch and above; made in the USA.
Before ordering
Confirm the hole sizes, required reach and chuck fit for the selected bits. The hex-shank description does not establish a single standard quick-change size across the set. Match speed and lubrication to the material and bit instructions.
Product questions and answers
Does this set extend to half-inch diameter?
No. The listed upper size is 3/8 inch. Choose another verified set if larger sizes are required.
Are all the shanks described as hex?
The hex-shank statement applies to sizes 3/16 inch and above.
Is cobalt only a surface coating here?
The material is identified as M35 cobalt HSS. Straw finish is listed separately from that steel composition.
Browse Cutting & Drilling > Drill Bits to compare other options.








