Cle-Line
Cle-Line C20740 118 Degree Silver & Deming Drill 1/2 Reduced Shank
5/8-inch high-speed steel drill bit with 118-degree point angle and black oxide finish for general-purpose metal drilling
- TypeDrill Bits
- 118° point angle centres the bit quickly for accurate starts
- High-speed steel construction resists wear during heavy drilling
- Black oxide finish reduces friction and extends cutting life
- 1/2″ reduced shank fits standard drill chucks without adapters
- Silver & Deming design handles large-diameter holes in tough materials
Cle-Line C20740 Reduced Shank Drill Bit
The Cle-Line C20740 is a Silver & Deming drill bit designed for general-purpose drilling tasks where a 1/2 inch reduced shank fits the chuck. It suits maintenance technicians and metalworkers who need a reliable high-speed steel bit for workshop or job-site use.
118 Degree Point Angle for General Drilling
The 118 degree point angle determines how the bit centres and cuts in metal, wood or plastic without a pilot hole. This angle is the standard choice for handheld drilling in mild steel and softer materials, making it the single specification that confirms suitability for everyday bench work.
Straightforward Chuck Fit and Common Issues
The 1/2 inch reduced shank seats directly in standard drill chucks, so installation is a simple matter of tightening the jaws securely. The most frequent problem is the bit spinning in the chuck under heavy feed pressure; ensuring the jaws grip the flat sections of the shank prevents slippage and maintains drilling accuracy.
Highlights
- 118° point angle centres the bit quickly for accurate starts
- High-speed steel construction resists wear during heavy drilling
- Black oxide finish reduces friction and extends cutting life
- 1/2″ reduced shank fits standard drill chucks without adapters
- Silver & Deming design handles large-diameter holes in tough materials
Specifications
| Brand | CLE-LINE |
|---|---|
| Type | Drill Bits |
Questions about this item
What does the 118-degree point angle mean when drilling?
The 118-degree point angle is a general-purpose geometry that centers easily and works well in mild steel, aluminium and wood without specialised tooling.
How does the 1/2-inch reduced shank affect chuck compatibility?
The reduced shank lets the 5/8-inch drill bit fit any standard 1/2-inch three-jaw chuck, so it works on most bench presses and heavy-duty hand drills.
What clearance is needed to mount this bit in a drill press?
The bit has a straight 1/2-inch shank with no flats or tang, so it requires a standard three-jaw chuck opening of at least 1/2 inch and enough quill travel for the full bit length.
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