Disston Company 287425 Hss Black Oxide Drill Bit 17/64 in

Product Description

The DISSTON COMPANY 287425 is a high speed steel (HSS) black oxide jobber-length drill bit sized at 17/64 inch diameter and 4-1/8 inch overall length. It features a 135-degree split point with four cutting edges that prevent the bit from walking on contact, eliminating the need for a center punch on most materials. The black oxide tempering treatment reduces frictional heat buildup and improves chip evacuation during drilling. This bit is suited for use by electricians, plumbers, HVAC technicians, and general trades workers who need a reliable twist drill for everyday hole-making tasks in the field or shop.

The 287425 is recommended for drilling into wood, plastic, wallboard, plywood, soft metals, aluminum, brass, and bronze. It is also rated for occasional use in stainless steel and other hard metals. The straight shank fits standard 3-jaw drill chucks on corded and cordless drills. Its jobber length makes it practical for general-purpose work where a full-length or stub drill would be impractical. Single-bit carded packaging is suitable for individual replacement or tool kit stocking.

Key Features

• 135-degree split point with four cutting edges prevents walking and enables fast penetration without center punching
• High speed steel construction provides hardness and wear resistance across a wide range of materials
• Black oxide tempering treatment reduces frictional resistance and improves chip flow during drilling
• Jobber-length geometry balances reach and rigidity for general-purpose trade use
• Straight shank fits standard 3-jaw chucks on corded and cordless drills
• Rated for wood, plastic, wallboard, plywood, aluminum, brass, bronze, and occasional use in stainless steel and hard metals

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard 3-jaw drill chuck that accepts a straight shank. Suitable for use in wood, plastic, wallboard, plywood, soft metals, aluminum, brass, and bronze, with occasional use in stainless steel and other hard metals.

Installation Notes

Install the straight shank securely into a 3-jaw chuck and tighten fully before drilling. Ensure the workpiece is clamped or secured to prevent rotation during drilling. When drilling metal, use appropriate cutting fluid or lubricant to extend bit life and manage heat. Inspect the cutting edges for wear or damage before each use and replace the bit if the point is chipped or dull.