Import 20820 Mechanics Drill Bit 0.161 in Hss Split Point

Product Description

The IMPORT 20820 is a mechanics-length, high-speed steel (HSS) drill bit designed for general-purpose metal drilling in trade and production environments. It measures 0.161 inches in diameter with a 3.25-inch overall length and a 2-inch spiral flute. The 135-degree split point geometry reduces walking on entry and lowers thrust force compared to a standard 118-degree point. The oxide finish provides a degree of lubricity and surface protection during cutting. It is suited for use by machinists, maintenance mechanics, pipefitters, and general trade technicians who require a reliable everyday drill bit for metal stock work.

This bit is designed for drilling carbon steel, cast iron, high alloy steel, high tensile strength alloys, and stainless steel. The mechanics length — shorter overall than a jobber bit — provides added rigidity and control in confined spaces or when working in a drill press or hand drill at the bench. The straight-cylindrical shank seats securely in standard three-jaw chucks without requiring a special collet. Right-hand cut is the standard configuration compatible with conventional drilling equipment.

Key Features

• 135-degree split point reduces bit walking and requires less downward pressure on entry
• High-speed steel construction maintains cutting edge integrity across a range of metal workpiece materials
• Mechanics length (3.25 inches OAL) delivers greater rigidity than jobber-length bits in tight-clearance applications
• 2-inch spiral flute length promotes chip evacuation during through-hole drilling
• Oxide finish provides surface lubricity and mild corrosion resistance during storage and use
• Web-thinned, parallel web configuration reduces cutting resistance and heat buildup

Compatibility

Designed as a general-purpose mechanics-length drill bit compatible with any standard drill press, hand drill, or drill driver equipped with a three-jaw chuck accepting a straight-cylindrical shank. Suitable for workpiece materials including carbon steel, cast iron, high alloy steel, high tensile strength alloys, and stainless steel.

Installation Notes

This drill bit is installed and operated by machinists, maintenance mechanics, and trade technicians using standard drilling equipment. Secure the straight-cylindrical shank firmly in the chuck before operation and verify the workpiece is clamped or fixtured to prevent rotation. Use appropriate cutting fluid or lubricant when drilling stainless steel or high-alloy materials to extend tool life and reduce heat buildup. Inspect the cutting edges for wear or chipping before each use and replace the bit if the point is damaged.