Cleveland C14291 Drill Bit Letter K 9/32 Inch Cobalt M42

Product Description

The CLEVELAND C14291 is a screw machine length drill bit sized at Letter K (0.2810 inches / 9/32 inch), engineered for heavy-duty drilling in demanding trade and industrial applications. Built from M42 cobalt high-speed steel, the bit handles elevated heat without losing temper, making it effective in harder and more abrasive materials. The 135-degree split point starts without a center punch and reduces walking on entry. A parabolic flute design clears chips aggressively, maintaining cut rate during deep or interrupted passes. The straw and oxide dual coating reduces friction at the cutting edge. Overall length is 2-11/16 inches with a 1-1/2 inch flute length.

This drill bit suits metalworking and fabrication professionals who need reliable performance across a wide range of workpiece materials. Rated for use in aluminum, brass, carbon steel, cast iron, nickel alloy, plastics, stainless steel, and tool steel, the C14291 covers most common shop and field materials in a single bit. The straight-cylindrical shank fits standard 3-jaw drill chucks without modification, and the web-thinned, parallel web configuration reduces thrust requirements during drilling. It belongs to the Cleveland Series 2175 heavy-duty screw machine drill line.

Key Features

• M42 cobalt steel construction retains hardness under high-heat cutting conditions
• 135-degree split point starts on contact without center-punching and reduces thrust
• Parabolic flute profile promotes rapid, consistent chip evacuation
• Straw and oxide coating reduces friction and extends edge life
• Web-thinned parallel web lowers drilling force across tough alloys
• Straight-cylindrical shank fits standard drill chucks; diameter tolerance held to +0.0000 / -0.0010 inches

Compatibility

Designed as a direct-fit screw machine length drill bit for use in any standard drill press, hand drill, or CNC spindle accepting a 0.2810-inch straight-cylindrical shank. Suitable for workpieces in aluminum, brass, carbon steel, cast iron, nickel alloy, plastics, stainless steel, and tool steel per the ANSI Series 2175 specification.

Installation Notes

Installation and use should be performed by qualified machinists, tool-and-die technicians, or trade professionals familiar with drill press and rotary tool operation. Secure the shank fully in the chuck and confirm runout is within acceptable limits before drilling. Apply appropriate cutting fluid for the workpiece material, particularly when drilling stainless steel or nickel alloys, to manage heat buildup at the cutting edge. Follow applicable shop safety protocols, including eye protection and secure workpiece fixturing, at all times.