Cleveland C16645 Jobber Length Drill Bit Wire Size 33

Product Description

The CLEVELAND C16645 is a jobber-length twist drill bit designed for precision drilling in metal and hard materials. Built from M42 cobalt high-speed steel and coated with titanium nitride (TiN), it delivers extended tool life in demanding production and maintenance applications. The bit measures wire size 33, corresponding to 0.1130 inches in diameter, with a 135-degree split point that reduces walking and allows drilling to start without a center punch. Overall length is 2-5/8 inches with a 1-1/2 inch parabolic flute for efficient chip evacuation. This is a heavy-duty grade bit suited for machinists, pipefitters, HVAC techs, and electricians drilling through ferrous metals and stainless steel.

The C16645 fits standard drill chucks using its straight-cylindrical shank of 0.1130 inches diameter. It is well suited for bench drill press work, hand drill applications, and CNC operations requiring a small-diameter cobalt bit. Typical applications include drilling through sheet metal, steel pipe, conduit hangers, and structural steel. Its parabolic flute geometry promotes faster chip removal in deep-hole applications, reducing heat buildup and bit deflection. This bit is sold individually and is appropriate for shop environments where consistent small-diameter hole quality is required.

Key Features

• M42 cobalt steel construction for heat resistance and extended tool life in hard metals
• TiN coating reduces friction and surface wear, extending cutting edge life
• 135-degree split point starts on contact without center-punching and reduces thrust load
• Parabolic flute design accelerates chip evacuation in deeper holes
• Web-thinned, tapered web for reduced cutting resistance
• Right-hand cut with straight-cylindrical shank fits standard drill chucks
• Meets ASME B94.11M and DIN 338 standards

Compatibility

Designed as an OEM-style replacement or direct-use jobber drill bit for any standard drill chuck accepting a 0.1130-inch straight-cylindrical shank, conforming to ASME B94.11M and DIN 338 dimensional standards.

Installation Notes

Install in a keyed or keyless drill chuck and tighten securely before operation. Power down and de-energize or lock out all equipment before changing bits on powered drill presses or CNC machines. Use appropriate cutting fluid or coolant when drilling ferrous metals to manage heat, as this bit does not support through-coolant. Inspect the cutting edge before each use and replace if chipping or excessive wear is visible.