Import 20912 Mechanics Drill Bit 1/4 Inch Hss Split Point

Product Description

The IMPORT 20912 is a mechanics-length twist drill bit designed for general-purpose hole drilling in metal and hard materials. Built from high-speed steel with an oxide finish, this bit features a 135-degree split point that reduces walking on entry and cuts through workpieces without a center punch in most applications. The Weldon flat shank provides a positive grip in drill chucks and prevents slippage under torque. With an overall length of 3.5 inches and a flute length of 2 inches, this short-length geometry delivers rigidity and accuracy in tight spaces. Installed by machinists, pipefitters, ironworkers, and general maintenance technicians wherever precision hole sizing in ferrous metals is required.

This bit is suited for drilling carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and general steel stock. The mechanics length profile makes it a practical choice for production drilling, field service, and maintenance applications where a jobber-length bit would flex or deflect. The three-flat Weldon shank is compatible with standard Weldon-style chucks and tool holders commonly used in drill presses and hand drills.

Key Features

• 135-degree split point reduces entry walking and lowers thrust force on startup
• High-speed steel construction handles heat generated in ferrous metal drilling
• Oxide coating provides mild corrosion resistance and reduces friction during cutting
• Weldon flat shank with three flats prevents bit slippage under rotational load
• Web-thinned parallel web design maintains cutting efficiency through full flute depth
• Mechanics length at 3.5 inches overall provides rigidity over standard jobber-length bits

Compatibility

Designed for use in carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and general steel workpieces. Fits Weldon-style chucks and tool holders accepting a 1/4 inch Weldon flat shank.

Installation Notes

Install and remove drill bits only with the drill powered down and, on drill presses, the spindle fully stopped. Secure the Weldon shank firmly in the chuck so that at least one flat engages the set screw to prevent rotation under load. Use appropriate cutting fluid when drilling stainless steel or high alloy materials to manage heat and extend tool life. Wear eye protection and secure the workpiece before drilling.