Cleveland C23835 Mechanics Drill Bit 9/64 in Hss

Product Description

The CLEVELAND C23835 is a mechanics-length, high-speed steel twist drill bit designed for general-purpose drilling in metal fabrication and maintenance applications. Built to ASME B94.11M standards, this 9/64 inch (0.1406 inch decimal) bit features a 135-degree split point that reduces walking on contact, allowing faster penetration without a center punch on most surfaces. The right-hand spiral flute evacuates chips efficiently, keeping the cutting edge clear during operation. Licensed trade professionals and industrial maintenance technicians reach for this bit when working through cast iron and steel in tight or confined installations where a shorter mechanics-length drill is required.

The C23835 is suited for use on drill presses, hand drills, and right-angle drills in residential, commercial, and light industrial settings. Its flatted shank seats securely in standard three-jaw chucks and reduces slippage under torque. Typical applications include sheet metal work, structural steel drilling, mechanical assembly, and HVAC or plumbing rough-in where pilot holes are needed in ferrous materials. The 1.56 inch flute length accommodates the shallow stock thicknesses common in duct framing, pipe hangers, and bracket mounting.

Key Features

• 135-degree split point reduces bit walking and allows self-starting entry on flat metal surfaces
• High-speed steel construction provides heat resistance and edge retention across repeated cuts
• Mechanics length (2.63 inches OAL) fits confined spaces where standard-length bits will not clear
• Flatted shank prevents rotation in chuck jaws under high-torque drilling conditions
• Right-hand spiral flute design promotes efficient chip evacuation from the cut
• Meets ASME B94.11M dimensional and tolerance standards

Compatibility

Designed as a general-purpose replacement or stock drill bit for use in standard three-jaw chucks accepting a 0.1406 inch (3.57 mm) flatted shank. Primary workpiece materials are cast iron and steel.

Installation Notes

Secure the bit firmly in the chuck before operating and verify the shank is fully seated. Use appropriate cutting fluid or lubricant when drilling steel to extend bit life and reduce heat buildup. Follow shop safety practices including eye protection and secure workpiece clamping. Discard bits that show chipping, burning, or measurable diameter loss, as a compromised cutting edge increases the risk of workpiece damage and personal injury.