Milwaukee 48-89-2750 Silver Deming Drill Bit 7/8 in

Product Description

The Milwaukee Electric Tool Corp 48-89-2750 is a 7/8-inch Silver Deming drill bit with a black oxide coating, designed for general-purpose drilling in wood and metal. The black oxide finish reduces friction during drilling and provides corrosion resistance, extending bit life in demanding shop and field conditions. The Silver Deming half-shank design allows the bit to be chucked in standard 1/2-inch drill chucks, making it practical for electricians, pipefitters, HVAC technicians, and general tradespeople who need to bore large-diameter holes without a dedicated large-bore machine.

This bit is suited for residential and light commercial trade applications where oversized holes are required in structural lumber, metal framing, enclosures, panels, or ductwork. The 7/8-inch diameter is a common size for conduit knockout work, pipe penetrations, and equipment mounting. It ships in a square sleeve case that protects the cutting edges during storage and transport on the job site.

Key Features

• 7/8-inch cutting diameter with reduced half-shank for use in standard 1/2-inch drill chucks
• Black oxide coating reduces friction and provides anti-corrosive protection
• Silver Deming design suitable for drilling in both wood and metal
• Square sleeve case included for edge protection during storage and transport
• Sold as a package of 6 bits per unit of measure

Compatibility

Designed for use with standard 1/2-inch capacity drill chucks for general-purpose drilling in wood and metal substrates.

Installation Notes

A licensed electrician, plumber, or HVAC technician should confirm hole sizing against applicable code requirements before drilling into structural or fire-rated assemblies. Secure workpieces before drilling large-diameter holes to prevent bit grab. Use cutting fluid when boring through ferrous metal to extend bit life and reduce heat buildup. Inspect the cutting edges before each use and replace any bit showing chipping or excessive wear.