Disston Company 119941 Hss Black Oxide Drill Bit 13/64 in

Product Description

The DISSTON COMPANY 119941 is a high speed steel (HSS) jobber-length drill bit with a black oxide finish, designed for general-purpose drilling across a wide range of materials. The 135-degree split point features four cutting edges that prevent walking on contact, eliminating the need for a center punch in most applications. Black oxide tempering reduces frictional heat buildup and improves chip evacuation during drilling. At 13/64 inches in diameter and 3-5/8 inches in length, this is a straight-shank bit suited for standard drill chucks. It is installed and used by HVAC technicians, plumbers, electricians, and general tradespeople who need a reliable jobber-length bit for everyday drilling tasks.

This bit is recommended for use in wood, plastic, wallboard, plywood, soft metals, aluminum, brass, and bronze. It can also be used occasionally in stainless steel and other hard metals, though it is not optimized for sustained hard-metal drilling. Its jobber length makes it compatible with standard hand drills, drill presses, and right-angle drills commonly used on job sites and in mechanical rooms. The straight shank fits standard three-jaw chucks without adapters.

Key Features

• 135-degree split point with four cutting edges eliminates walking and provides fast, accurate penetration
• High speed steel construction offers durability across wood, plastic, and soft metals
• Black oxide tempering treatment reduces frictional resistance and improves chip flow
• Jobber length at 3-5/8 inches provides versatility for most standard drilling depths
• Straight shank fits standard three-jaw drill chucks without an adapter

Compatibility

Designed as a general-purpose OEM-style jobber drill bit suitable for use with standard hand drills, cordless drills, and drill presses equipped with a three-jaw chuck accepting a 13/64-inch straight shank.

Installation Notes

This bit is installed by hand or power drill by any trade professional requiring a standard jobber-length hole. Always ensure the drill is powered off and the chuck is fully tightened before use. Use appropriate cutting fluid when drilling soft metals to extend bit life and improve chip flow. Inspect the cutting edges for wear before each use and replace if the tip shows chipping or heat discoloration.