Import 20913 Mechanics Drill Bit 17/64 Inch Hss

Product Description

The IMPORT 20913 is a mechanics-length high-speed steel drill bit designed for general-purpose drilling in a wide range of metal workpieces. It features a 17/64 inch (0.2656 inch) diameter with a 135-degree split point that reduces walking on contact and requires no center punch on most surfaces. The Weldon flat shank with three flats resists rotation in the chuck, making it well suited for high-torque drill press and hand-drill applications. The oxide coating provides a baseline level of lubricity and corrosion resistance during service. Overall length is 3-5/8 inches with a flute length of 2-1/8 inches.

This bit is intended for drilling carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and general steel stock. The mechanics-length body keeps the bit rigid in tight clearance areas while still providing enough flute length for through-hole work in typical structural and fabricated metal components. The right-hand spiral flute evacuates chips efficiently during standard clockwise drilling operations. It is a practical choice for maintenance mechanics, millwrights, fabricators, and general metalworking shops that need a reliable short-series bit for production or repair drilling.

Key Features

• 17/64 inch diameter with 135-degree split point for self-starting engagement and reduced thrust
• High-speed steel construction handles a broad range of ferrous workpiece materials
• Weldon flat shank with 3 flats prevents slippage in chuck under high torque
• Mechanics (short-series) length at 3-5/8 inches OAL for rigidity in confined spaces
• Oxide finish provides light lubricity and surface protection
• Web-thinned parallel web reduces cutting resistance and heat buildup at the tip
• Right-hand cut, regular spiral flute for standard clockwise drilling and efficient chip removal

Compatibility

Designed for use in drill presses, magnetic drills, and hand drills equipped with chucks that accept Weldon flat shanks. Suitable for drilling carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and general steel workpieces in general-purpose metalworking applications.

Installation Notes

Secure the Weldon flat shank fully in the chuck, engaging the set screw against a flat to prevent rotation under load. Use cutting fluid or a suitable metalworking lubricant when drilling stainless steel, high alloy steel, or high tensile strength materials to extend tool life and reduce heat. Ensure the workpiece is clamped securely before drilling to prevent rotation or movement. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed.