Milwaukee 48-89-2324 Cobalt Drill Bit 27/64 in 3-pack

Product Description

The Milwaukee Electric Tool Corp 48-89-2324 is a RED HELIX cobalt drill bit designed for demanding metal drilling applications. Sized at 27/64 inches, this bit uses a cobalt alloy construction that resists heat buildup and maintains cutting edge integrity when boring through hard metals, stainless steel, and other abrasive materials. The RED HELIX geometry refers to the aggressive helix angle that accelerates chip evacuation and reduces heat concentration at the tip. This bit is sold as a 3-pack, giving technicians and tradespeople on-hand replacements for high-frequency drilling tasks. Electricians, HVAC installers, and general contractors who regularly drill through structural steel, angle iron, or sheet metal will find this format practical for everyday use.

This drill bit is suited for stationary drill press work as well as handheld drilling in residential and commercial construction and service settings. The 27/64-inch diameter is commonly used for tapping holes, clearance holes for 3/8-inch fasteners, and conduit or bracket mounting applications. The cobalt construction makes it a reliable choice when standard high-speed steel bits wear prematurely on tough base metals.

Key Features

• Cobalt alloy construction handles hard metals and abrasive materials without rapid edge wear
• RED HELIX geometry promotes fast chip removal and reduced heat buildup during drilling
• 27/64-inch diameter suits clearance holes for 3/8-inch fasteners and common trade applications
• 3-pack quantity provides on-hand replacements for high-use drilling environments
• Sold per each unit (EA) as a set of 3 bits

Compatibility

Designed for use with standard 3/8-inch or 1/2-inch keyed or keyless drill chucks on corded and cordless drills and drill presses that accept straight-shank round-shank bits in the 27/64-inch size range.

Installation Notes

A licensed electrician, HVAC technician, or qualified tradesperson should select the appropriate drill speed for the base material before use — lower speeds are recommended for hard metals when using cobalt bits. Secure the workpiece firmly before drilling to prevent rotation and bit breakage. Use cutting oil or coolant when drilling thick steel to extend bit life and maintain cutting performance. Inspect the cutting edges before each use and replace worn bits promptly to maintain hole quality and operator safety.

Technical Specifications

• Drill Bit Diameter: 27/64 inches
• Bit Material: Cobalt
• Package Quantity: 3 per pack
• Unit of Measure: EA
• Weight: 0.41 pounds

Standard Information

• Brand: Milwaukee Electric Tool Corp
• Manufacturer Part Number: 48-89-2324