Cle-Line
Cle-Line C20742 118 Degree Silver & Deming Drill 21/32 in
A 21/32 inch high-speed steel drill bit with a 118-degree point and 1/2 reduced shank for large-hole drilling
- TypeDrill Bits
- 118-degree point angle centres the bit quickly for accurate starts
- 21/32 inch diameter handles large-hole drilling in one pass
- 1/2 inch reduced shank fits standard chucks without adapters
- High-speed steel construction resists heat during extended cuts
- Black oxide finish reduces friction and improves chip evacuation
Cle-Line C20742 21/32 in Drill Bit
The Cle-Line C20742 is a Silver & Deming drill bit with a 21/32 in diameter and a 118 degree point angle. It features a reduced 1/2 in shank for use in standard drill chucks. The bit is constructed from high speed steel with a black oxide finish for durability.
Suited for general purpose drilling in metal
This bit suits machinists and maintenance technicians who need a large diameter hole with a standard chuck capacity. It is not for buyers who need a full-size shank for heavy industrial rigs or those requiring split-point geometry for precision starting without a pilot hole.
Black oxide finish and reduced shank
The black oxide finish provides corrosion resistance and helps retain lubricant during cutting operations. The reduced 1/2 in shank allows the large 21/32 in bit to be used in common 1/2 in capacity drill chucks without requiring a larger machine.
Highlights
- 118-degree point angle centres the bit quickly for accurate starts
- 21/32 inch diameter handles large-hole drilling in one pass
- 1/2 inch reduced shank fits standard chucks without adapters
- High-speed steel construction resists heat during extended cuts
- Black oxide finish reduces friction and improves chip evacuation
Specifications
| Brand | CLE-LINE |
|---|---|
| Type | Drill Bits |
Questions about this item
What chuck capacity must my drill have to accept the 1/2 reduced shank on this 21/32 in bit?
Your drill chuck needs to open to at least 1/2 inch to grip the reduced shank of this 21/32 in Silver & Deming drill.
Can I use this 118 degree high-speed steel bit in the same workpiece where I previously ran older black oxide bits?
Yes, the 118 degree point angle and high-speed steel construction work in the same materials as older black oxide bits without changing setup.
How do I confirm the 118 degree point angle is cutting correctly after I start drilling?
The bit should centre without wandering, produce continuous chips, and leave a clean 21/32 in hole when run at proper speed for high-speed steel.
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