Cleveland
Cleveland C04668 1" HSS Bright 118° Jobber Drill Bit
A 1-inch high-speed steel jobber drill bit with a 118-degree point for general-purpose drilling
- 1" drilling capacity for large-hole applications
- High-speed steel construction resists wear in tough materials
- 118° point angle centres quickly without pilot hole
- Bright finish prevents coating buildup in soft metals
- Straight shank fits standard drill chucks securely
1-Inch HSS Jobber Drill Bit
The Cleveland C04668 is a fractional-inch twist drill made from high-speed steel with a bright uncoated finish. Its straight shank fits standard three-jaw chucks on bench drills, pillar drills and portable drill presses. Machinists and maintenance engineers use it for general-purpose drilling in mild steel, cast iron and non-ferrous alloys.
118-Degree Point Angle Limits
The 118-degree point is ground for conventional drilling in softer metals where a sharp chisel edge reduces wandering on flat surfaces. Hardened steels, stainless grades and abrasive composites dull the cutting lips quickly because the bright finish offers no wear-resistant coating. Deep holes beyond three diameters require frequent pecking to clear chips and prevent overheating.
Bright Finish and Straight Shank Implications
The uncoated surface shows wear visibly, letting the operator judge regrind timing without guesswork. A straight shank transmits torque directly but can slip in worn keyless chucks, so a keyed chuck or collet is preferred for heavy feeds. The 1.0000-inch diameter leaves no standard clearance for tap-drill charts, so hole sizing must be calculated from the exact decimal equivalent.
Highlights
- 1" drilling capacity for large-hole applications
- High-speed steel construction resists wear in tough materials
- 118° point angle centres quickly without pilot hole
- Bright finish prevents coating buildup in soft metals
- Straight shank fits standard drill chucks securely
Specifications
| Brand | CLEVELAND |
|---|
Questions about this item
Should I choose the 1.0000 inch jobber length or a shorter bit for my drill press?
The 1.0000 inch jobber length provides standard flute and overall length for general-purpose drilling; select a shorter screw-machine bit only if you need extra rigidity in confined spaces.
What does the 118 degree point angle mean when I start drilling mild steel?
The 118 degree point centres quickly without a pilot hole and cuts mild steel efficiently, though it may wander on very hard or abrasive alloys.
How does the straight shank limit the bit in a three-jaw chuck?
The straight shank relies on friction in a three-jaw chuck, so torque capacity is capped by chuck grip rather than a positive drive feature.
More in Machinery Motors & Parts
Similar items
Same shelf, same checkout — eight coins and a 30-minute rate lock.
