Cleveland C23843 Mechanics Drill Bit 17/64 in Hss

Product Description

The CLEVELAND C23843 is a mechanics-length drill bit designed for general-purpose drilling in metal and cast iron. Built from high-speed steel (HSS), it features a 135-degree split point that self-centers on contact, reducing the need for a center punch and minimizing walking on hard surfaces. The flatted shank provides a secure grip in standard three-jaw chucks. At 3.63 inches overall length, the mechanics-length body offers added rigidity in tight-clearance applications where a jobber-length bit would flex or deflect. This bit is suited for use by machinists, maintenance technicians, pipefitters, and HVAC service professionals working with steel and cast iron components.

The C23843 is sized at 17/64 inch (0.2656 inch decimal) and is appropriate for drilling through-holes and clearance holes in steel fabrication, equipment repair, and mechanical assembly work. The right-hand spiral flute geometry evacuates chips efficiently during through-drilling. It conforms to ASME B94.11M standards, making it a recognized-specification tool for shop and field use. Sold individually, it fits into standard drill sets or serves as a direct replacement for a worn or broken bit of the same size.

Key Features

• 135-degree split point self-centers without a pilot punch, reducing setup time on metal surfaces
• High-speed steel construction handles general-purpose drilling in cast iron and steel
• Mechanics length (3.63 inches OAL) provides rigidity in confined spaces compared to jobber-length alternatives
• Flatted shank resists slipping in standard drill chuck jaws
• Right-hand cut with spiral flutes for efficient chip evacuation
• Meets ASME B94.11M dimensional and performance standards

Compatibility

Designed as a general-purpose mechanics-length drill bit compatible with any standard three-jaw drill chuck accepting a 0.2656-inch (6.75 mm) flatted shank. Intended for use in drill presses, hand drills, and right-angle drill attachments. Primary workpiece materials are steel and cast iron.

Installation Notes

Secure the flatted shank fully into the chuck jaws before tightening to prevent slippage during operation. Always wear eye protection when drilling metal. Use cutting fluid or coolant when drilling cast iron or hard steel to extend bit life and reduce heat buildup. Ensure the workpiece is clamped or secured before beginning the cut to prevent rotation and injury.