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Cle-Line C17040 21/32 inch silver and deming drill bit black gold finish 1/2 reduced shank

Cle-Line

Cle-Line C17040 118 Degree Silver & Deming Drill 21/32 in 1/2 Reduced Shank

SKU CH-EBMP-7VBF0

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

  • Product typeDrill Bits
  • Main materialHigh Speed Steel
  • 118-degree point angle starts holes accurately
  • High-speed steel body resists heat during drilling
  • 21/32 inch diameter suits large-hole applications
  • 1/2 inch reduced shank fits standard chucks
  • Black-and-gold finish identifies the bit quickly

Cle-Line C17040 Reduced Shank Drill Bit

This 21/32 inch drill bit is designed for general-purpose drilling in metal and wood. It suits trade professionals and serious DIY users who need a reliable high-speed steel cutter. The reduced shank allows use with standard 1/2 inch chucks.

Thermals Noise and Power Draw

The high-speed steel construction manages heat effectively during normal drilling operations. Friction generates typical warmth for this material class without excessive buildup. Noise levels depend on the drill motor and workpiece rather than the bit itself.

Behaviour Under Sustained Load

The 118 degree point angle maintains cutting efficiency during extended drilling sessions. Black and gold finish resists wear when working through tougher materials. The bit retains its geometry under continuous use without premature dulling.

How it compares

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

Price $19.99
Cheaper than about 64% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLE-LINE
Product typeDrill Bits
Size & build
Main materialHigh Speed Steel

Questions about this item

How do I fit the 1/2 reduced shank into my drill chuck, and what step do people miss?

Open the chuck wide enough for the 1/2 shank, insert the bit fully, then tighten securely; the step often missed is not seating the shank all the way before locking the chuck.

What wear or replacement should I expect with the high speed steel 118 degree point?

The cutting edges will dull over time; resharpen the 118 degree point or replace the bit when drilling 21/32 holes becomes slow or produces rough edges.

At what point does the black and gold finish limit performance during sustained drilling?

The finish helps with chip flow and heat, but under continuous heavy feed the high speed steel tip will overheat first, causing loss of hardness and faster wear.

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