#21 (.1590") Screw Machine Drill Bit, High Speed Steel
Model #: SMRN-21
Price: $0.65
Description: #21 HS Screw Machine Drill, 0122-0106
- Size: 21
- Flute Length: 1 1/16"
- Overall Length: 2 1/8"
- Decimal Equivalent: .159"
- Short length drill bits, often used in screw machines.
Often called "stub drills".
Shank is the same diameter as cutting diameter.
High speed steel.
Please note: Screw Machine Drill bits may be bright finished or black oxide, depending on stock.