Value Collection D20915 19/64 in Mechanics Drill Bit Hss

Product Description

The VALUE COLLECTION D20915 is a mechanics-length twist drill bit designed for general-purpose hole-making in metal and ferrous materials. Built from high-speed steel with an oxide finish, it measures 19/64 inch (0.2969 decimal inch) in diameter and features a 135-degree split point that self-centers on contact, reducing the need for a center punch and minimizing walking on hard surfaces. The Weldon flat shank with three flats locks securely in compatible chucks to prevent slipping under torque. Overall length is 3-7/8 inches with a flute length of 2-3/8 inches. This bit is a standard tool for machinists, maintenance technicians, and fabricators.

The D20915 is suited for drilling carbon steel, cast iron, high alloy steel, high tensile strength alloys, stainless steel, and general steel workpieces. The mechanics-length body gives it added rigidity compared to jobber-length bits, making it a reliable choice for tight-clearance work in machine shops, production environments, and maintenance applications where accuracy and repeatability matter. The right-hand spiral flute clears chips efficiently during through-hole and blind-hole drilling operations.

Key Features

• 135-degree split point self-centers and reduces walking on metal surfaces
• High-speed steel construction provides heat and wear resistance for metal drilling
• Oxide coating helps reduce friction and extends tool life during cutting
• Weldon flat shank with three flats prevents rotation in compatible drill chucks
• Mechanics length (3-7/8 inches OAL) provides rigidity in tight-clearance applications
• Web-thinned parallel web and regular spiral flute promote efficient chip evacuation

Compatibility

Designed for use with drill chucks and tool holders that accept a Weldon flat shank. Compatible workpiece materials include carbon steel, cast iron, high alloy steel, high tensile strength alloys, stainless steel, and general steel.

Installation Notes

This bit is typically installed and used by machinists, fabricators, and maintenance mechanics. Secure the Weldon flat shank firmly in a compatible chuck before operation to prevent slipping. Always wear appropriate eye protection and follow applicable shop safety procedures when drilling metal. Do not exceed the recommended speed range for the workpiece material and bit diameter.