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Silver and Deming drill bit, 21/32 inch, 118-degree point, black oxide finish, 1/2 reduced shank

Cle-Line

Cle-Line C20742 118 Degree Silver & Deming Drill 21/32 in

SKU CH-9PAQ-QVFXS

A 21/32 inch high-speed steel drill bit with a 118-degree point and 1/2 reduced shank for large-hole drilling

  • Product 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.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $16.99
Cheaper than about 70% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLE-LINE
Product typeDrill 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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