Disston Company 287612 Hss Black Oxide Drill Bit 19/64 in

Product Description

The DISSTON COMPANY 287612 is a high speed steel (HSS) black oxide drill bit designed for general-purpose drilling across a wide range of materials. At 19/64 inches in diameter and 4-3/8 inches in length, this jobber-length bit features a straight shank and a 135-degree split point. The four-cutting-edge geometry at the tip eliminates walking on contact, reducing the need for a center punch and delivering fast penetration. The black oxide tempering treatment lowers frictional resistance and improves chip flow during drilling, extending bit life under normal use conditions. This bit is carded for retail and single-unit jobsite use.

This drill bit is suited for residential and light commercial trade work where drilling into wood, plastic, wallboard, plywood, soft metals, aluminum, brass, and bronze is required. It is also rated for occasional use in stainless steel and other hard metals. Electricians, plumbers, HVAC technicians, and general tradespeople will find this bit appropriate for everyday rough-in and installation tasks where a reliable, general-purpose bit is needed.

Key Features

• 135-degree split point with four cutting edges eliminates bit walking and reduces setup time
• Black oxide tempering treatment reduces frictional resistance and improves chip flow
• Jobber length at 4-3/8 inches provides reach suitable for standard drilling applications
• Straight shank compatible with standard drill chucks
• High speed steel construction for use across wood, plastics, soft metals, and occasional hard metals
• Carded packaging for single-unit point-of-use availability

Compatibility

Designed for use with standard drill chucks accepting a straight shank. Recommended for wood, plastic, wallboard, plywood, soft metals, aluminum, brass, and bronze, with occasional use suitability in stainless steel and other hard metals.

Installation Notes

Installation of this bit is performed by trade professionals using standard corded or cordless drills with a compatible chuck size. Secure the straight shank firmly in the chuck before operation. Reduce feed pressure when drilling hard metals to avoid overheating the bit and maintain cutting edge integrity. Always wear appropriate eye protection when drilling.