Import -20913-10 Mechanics Drill Bit 17/64 in Hss

Product Description

The IMPORT -20913-10 is a mechanics-length twist drill bit designed for general-purpose hole-making in metal and ferrous workpiece materials. Built from high-speed steel with an oxide finish, it features a 135-degree split point that reduces walking on contact and minimizes the need for a center punch. The Weldon flat shank with three flats provides a secure, slip-resistant grip in compatible chucks. At 3-5/8 inches overall length with a 2-1/8 inch flute length, this bit suits confined-space drilling common in trade work. Right-hand cut spiral flutes evacuate chips efficiently during operation.

This bit is suited for drilling into carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and general steel stock. The mechanics-length profile makes it well-suited for production drilling, maintenance work, and field service applications where a standard jobber-length bit may be too long to maneuver. The 17/64 inch diameter (0.2656 inch decimal) is a common sizing used before tapping or for clearance holes in structural and mechanical assemblies.

Key Features

• 135-degree split point reduces drill walk and allows cutting to start without center-punching
• High-speed steel construction provides durability across ferrous metal drilling applications
• Oxide coating offers basic corrosion resistance and reduces friction during cutting
• Weldon flat shank with three flats prevents bit slippage in the chuck under torque
• Web-thinned parallel web configuration improves cutting efficiency and reduces thrust requirements
• Mechanics-length OAL of 3-5/8 inches suits tight-clearance drilling scenarios

Compatibility

Designed for use in drill presses, hand drills, and right-angle drills equipped with a Weldon flat chuck or compatible set-screw chuck accepting a Weldon shank. Intended for general-purpose drilling in carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and standard steel workpieces.

Installation Notes

This bit is installed by a machinist, millwright, pipefitter, or general trade technician using a Weldon-compatible chuck. Secure the set screws against the flats firmly before operation to prevent rotation under load. Always wear appropriate eye protection and secure the workpiece before drilling. Use cutting fluid when drilling stainless steel or high-alloy materials to extend bit life and manage heat buildup.