Cle-Line
Cle-Line C20758 118 Degree Silver & Deming Drill 1/2 Reduced Shank
A 118-degree high-speed steel drill bit with a 1/2-inch reduced shank for drilling 1 1/16-inch holes
- TypeDrill Bits
- MaterialHAWA
- 118-degree point angle starts holes cleanly
- Black-oxide finish resists wear and corrosion
- Reduced 1/2 shank fits standard drill chucks
- High-speed steel construction handles tough materials
- 1-1/16 inch diameter bores large holes efficiently
118-Degree Point Angle Drill Bit
The Cle-Line C20758 is a Silver & Deming drill bit designed for general-purpose drilling tasks. It features a 118-degree point angle suitable for a range of materials. The reduced shank allows compatibility with standard 1/2-inch chucks. This accessory targets professionals and DIY users needing reliable hole-making capability.
Upgrade from Standard Twist Bits
This bit replaces smaller twist drills when hole diameters exceed chuck capacity limits. The 1/2-inch reduced shank bridges the gap for larger holes without requiring a larger drill press. The jump is worth it when your current bits cannot fit the required shank size. Machining High Speed Steel construction supports durability in steel and cast iron.
Sustained Load Behaviour
Black Oxide finish helps retain lubricant and reduces chip welding during extended cutting. The 118-degree geometry maintains centring accuracy over repeated holes. Machining High Speed Steel resists heat buildup better than carbon steel alternatives. Consistent feed pressure yields straight holes without walking in tough alloys.
Highlights
- 118-degree point angle starts holes cleanly
- Black-oxide finish resists wear and corrosion
- Reduced 1/2 shank fits standard drill chucks
- High-speed steel construction handles tough materials
- 1-1/16 inch diameter bores large holes efficiently
Specifications
| Brand | CLE-LINE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
What chuck size is required for the 1/2 reduced shank on the C20758 drill bit?
The 1/2 reduced shank fits any standard 1/2 inch drill chuck, allowing use with smaller capacity drills.
How should the 118 degree point angle be aligned when starting a hole in steel?
Centre-punch the mark, apply steady pressure, and keep the bit perpendicular so the 118 degree point centres itself without walking.
When does the black oxide finish on this high speed steel bit need to be refreshed?
Reapply a light oil coating when the black oxide shows wear or rust to maintain lubricity and corrosion resistance.
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