Import 20819 Mechanics Drill Bit 0.166 in Hss Split Point

Product Description

The IMPORT 20819 is a mechanics-length high speed steel drill bit designed for general-purpose drilling in metalworking applications. It measures 0.166 inches in diameter with a 3.25 inch overall length and a 2 inch flute length. The 135-degree split point geometry reduces walking on entry and lowers the thrust needed to start a hole, making it well suited for hand-fed and machine-fed drilling operations. The oxide coating provides a baseline level of lubricity and corrosion resistance. Right-hand spiral flutes evacuate chips efficiently during through and blind-hole drilling.

This drill bit is intended for use on ferrous workpiece materials including carbon steel, cast iron, high alloy steel, high tensile strength alloys, stainless steel, and general steel. The mechanics length format — shorter than a jobber bit — gives added rigidity in tight clearance situations such as engine compartments, structural steel bays, and equipment panels. It is a common consumable stocked by millwrights, pipefitters, HVAC fabricators, and general maintenance technicians who drill metal regularly.

Key Features

• 135-degree split point reduces drill walk and lowers entry thrust on hard ferrous metals
• High speed steel construction handles the heat generated during metal drilling without rapid edge breakdown
• Mechanics length (3.25 inches OAL) provides rigidity in confined work areas
• Oxide finish adds baseline lubricity and surface protection
• Web-thinned parallel web improves chip flow and reduces cutting resistance
• Right-hand cut, straight-cylindrical shank fits standard three-jaw drill chucks

Compatibility

Designed as a general-purpose replacement mechanics drill bit for use in standard three-jaw drill chucks accepting straight-cylindrical shanks, compatible with hand drills, drill presses, and machining centers set up for right-hand cutting tools.

Installation Notes

This drill bit is installed and used by machinists, millwrights, pipefitters, and maintenance technicians. Secure the straight-cylindrical shank firmly in a three-jaw chuck before operation and confirm the workpiece is clamped or fixtured to prevent rotation. Use appropriate cutting fluid on hard alloy and stainless steel workpieces to extend tool life. Inspect the cutting edges before each use and replace the bit if chipping or significant wear is observed.