KnKut 4KK12SP Large Drill Set with 1/2-Inch Shanks
KnKut 4KK12SP provides four cutting diameters larger than the 1/2-inch gripping shank. Choose the cutting size for the hole, then confirm that the drill and workholding setup are rated for that operation even if the chuck accepts the reduced shank.
Specifications and included details
- Four cutting sizes: 9/16, 5/8, 3/4 and 1 inch.
- 1/2-inch reduced shanks with three flats.
- Step-point geometry and salt-nitride-treated HSS construction.
- USA-made drill-bit set supplied in a plastic storage case.
Before ordering
Confirm the machine's capacity for the larger cutting diameters and the actual work material. A half-inch chuck fit is not a guarantee of one-inch drilling capacity. Use bit-specific speed, feed and workholding instructions.
Product questions and answers
Does the half-inch label describe all four hole sizes?
No. It describes the reduced shank. The cutting diameters are 9/16, 5/8, 3/4 and 1 inch.
Are these multi-diameter cone step bits?
They are separate fixed-diameter drill bits with step-point tips, not a single stepped cone for multiple hole sizes.
Does reduced shank fit prove my drill can cut a one-inch hole?
No. Verify the drill's approved material and diameter limits as well as the chuck fit.
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