KnKut KK12SP-3/4 Step-Point Drill, 1/2-Inch Shank
KnKut KK12SP-3/4 separates the three-quarter-inch hole size from its half-inch chuck connection. A step point with split tip defines the cutting end, while the reduced shank with three flats defines the holding end; both checks matter when selecting it for an existing drilling setup.
Specifications and included details
- 3/4-inch cutting diameter and 1/2-inch reduced shank.
- Three flats on the shank; step-point design with split tip.
- Molybdenum high-speed steel with listed salt nitride treatment.
- Jobber-length designation; numeric overall and flute lengths not supplied.
Before ordering
Match the three-quarter-inch opening and verify machine capacity for the workpiece. Confirm the chuck can accept the half-inch shank, and compare actual length and clearance before purchase when reach is critical. The shank flats are not a quick-change hex interface.
Product questions and answers
Will it cut a half-inch hole because that is the shank size?
No. Its cutting diameter is 3/4 inch; 1/2 inch identifies the reduced shank.
Can it fit a quarter-inch hex quick-change holder?
It is listed with a half-inch three-flat reduced shank, not a quarter-inch hex fitting. Verify a suitable drill chuck.
Is this a multi-size sheet-metal step bit?
No. It is a fixed three-quarter-inch twist drill with step-point geometry.
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