Disston Company 287698 Hss Black Oxide Drill Bit 27/64 in

Product Description

The DISSTON COMPANY 287698 is a high speed steel (HSS) black oxide drill bit in jobber length, sized at 27/64 inches in diameter with an overall length of 5-3/8 inches and a 3/8-inch round shank. The 135-degree split point features four cutting edges that engage material immediately, reducing the tendency to walk without a center punch. Black oxide tempering treatment lowers frictional heat buildup and improves chip flow during drilling. This bit is suited for electricians, plumbers, HVAC installers, and general trade mechanics who need a reliable jobber-length bit for everyday drilling tasks in the field or shop.

The 287698 is designed for drilling through wood, plastic, wallboard, plywood, soft metals, aluminum, brass, and bronze. It is rated for occasional use in stainless steel and other hard metals. The jobber length format fits standard 3/8-inch keyless and keyed drill chucks common on cordless and corded drills used throughout the trades. It suits residential and light commercial construction and service work where a mid-size fractional bit is frequently needed.

Key Features

• 27/64-inch diameter, jobber length at 5-3/8 inches overall
• 135-degree split point with four cutting edges reduces walking and starts fast 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 evacuation
• 3/8-inch shank fits standard drill chucks used in the trades
• Rated for wood, plastic, wallboard, plywood, soft metals, aluminum, brass, bronze, and occasional use in stainless steel and hard metals

Compatibility

Designed for use with standard 3/8-inch or larger keyed and keyless drill chucks on corded and cordless drills. Suitable for multipurpose drilling applications in wood, plastic, wallboard, plywood, soft metals, aluminum, brass, and bronze, with occasional use capacity in stainless steel and other hard metals.

Installation Notes

Install the bit securely into a properly rated drill chuck and tighten fully before operation. Power down and disconnect or lock out the drill before changing bits. Use appropriate cutting speed for the material being drilled — harder metals require slower speeds and may benefit from cutting fluid to manage heat. Wear eye protection in compliance with applicable jobsite safety requirements.