Cle-Line C20765 118 Degree Silver & Deming Drill 1/2 Reduced Shank

Cle-Line C20765 118 Degree Drill

The Cle-Line C20765 is a Silver & Deming drill bit built for drilling large-diameter holes in metal and other machinable materials. Its 118-degree point angle provides reliable centring and chip evacuation across general-purpose applications. The reduced shank design allows the bit to be used in standard 1/2-inch chucks despite its larger cutting diameter. This accessory targets machinists, maintenance technicians and fabricators who need a durable high-speed steel cutter for workshop or job-site use.

Check chuck capacity and material compatibility

Verify that your drill press or handheld drill accepts a 1/2-inch shank and can deliver the torque required for a large-diameter bit. Confirm the workpiece material is suited to high-speed steel cutting edges and that you can apply appropriate cutting fluid or lubrication. Ensure the tool’s maximum speed rating matches the recommended surface speed for the diameter and material you intend to drill. Rigid workpiece clamping is essential to prevent bit grab or breakage during the cut.

Replaces worn or undersized large-diameter bits

This bit replaces dull, damaged or smaller-diameter drills when a 1 1/2-inch hole is required in a single pass. The upgrade is worth it when step-drilling or hole-saw methods are too slow or produce insufficient accuracy for the task. The black oxide finish adds wear resistance and helps retain lubricant compared to uncoated high-speed steel alternatives. It is not suited for production-volume CNC tooling or materials that demand cobalt or carbide substrates.