Import BDNA--20914-1 Mechanics Drill Bit 9/32 in Hss

Product Description

The IMPORT BDNA--20914-1 is a mechanics-length drill bit designed for general-purpose drilling in metal and ferrous materials. It features a 9/32 inch (0.2812 inch decimal) diameter, a 135-degree split point, and a high-speed steel (HSS) construction with an oxide finish. The split point geometry reduces walking at contact and allows drilling without a center punch in most applications. The Weldon flat shank with three flats provides positive drive and resists slipping in compatible chucks. This bit is suited for use by machinists, maintenance technicians, and trade professionals working with metal fabrication or mechanical assemblies.

This drill bit is intended for drilling carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and general steel workpieces. The mechanics-length body — shorter than a jobber-length bit — offers added rigidity in tight clearance situations or when drilling on a drill press or CNC-style setup. The right-hand spiral flute with web-thinned parallel web configuration aids chip evacuation and reduces thrust load during drilling operations.

Key Features

• 9/32 inch diameter with 0.2812 inch decimal equivalent for precise sizing
• 135-degree split point reduces drill walking and lowers required entry force
• High-speed steel construction handles drilling into carbon steel, cast iron, and stainless steel
• Weldon flat shank with three flats prevents chuck slippage under torque
• Oxide coating provides mild corrosion resistance and reduces friction during cutting
• Web-thinned, parallel web configuration improves chip flow and reduces heat buildup

Compatibility

Designed for use with drill presses, CNC drilling equipment, and hand drills equipped with Weldon flat-shank compatible chucks. Rated for general-purpose drilling in carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and steel workpieces.

Installation Notes

Secure the Weldon flat shank firmly in a compatible chuck before use, ensuring the set screw engages one of the three flats to prevent rotation under load. Use appropriate cutting fluid or coolant when drilling stainless steel or high alloy materials to extend bit life and manage heat. Do not exceed the recommended RPM range for the bit diameter and workpiece material combination. Inspect the cutting edges before each use and replace the bit if chipping or significant wear is visible.