Milwaukee Elec Tool 49-22-4073 Door Lock Hole Saw Kit

Product Description

The MILWAUKEE ELEC TOOL 49-22-4073 is a door lock installation hole saw kit built for trade professionals who need accurate, durable cutting in metal and wood door applications. The kit centers on two HOLE DOZER Bi-Metal Hole Saws — a 1 inch and a 2-1/8 inch — each constructed with 8 percent cobalt for increased wear resistance. A 3.5 TPI tooth geometry is engineered specifically for extended life in metal cutting. A Thermoset Coating reduces heat buildup, which improves performance when running cordless tools and is rated to deliver 25 percent more holes per battery charge. Licensed tradespeople and skilled installers performing door hardware rough-in work will find the included accessories streamline the entire operation from layout to plug removal.

This kit is suited for residential and light commercial door lock installation, including cylindrical lockset and deadbolt bore work in hollow-core and solid-core doors. The 1 inch saw handles the latch bolt cross-bore, while the 2-1/8 inch saw cuts the main lock body bore. ALL-ACCESS SLOTS on the saws support fast plug removal, improve pilot bit visibility for precise placement, and accelerate chip ejection to keep the cut zone cooler during extended use. The full accessory complement — anti-splinter depth stop, arbor adapter, auto centering drill guide, spacer, and two 3/8 inch small thread arbors — means a technician can set up and complete a standard door lock installation without sourcing additional tooling. All components are manufactured in the USA.

Key Features

• 3.5 TPI tooth design engineered for longest life in metal cutting applications
• 8 percent cobalt bi-metal construction for increased wear resistance
• HOLE DOZER Thermoset Coating reduces heat and extends run time on cordless tools — rated 25 percent more holes per charge
• ALL-ACCESS SLOTS enable fast plug removal, improved pilot visibility, and quicker chip ejection
• Anti-splinter depth stop protects door face finish during through-cuts
• Auto centering drill guide improves bore placement accuracy
• All components made in the USA; backed by a Lifetime Tooth Break Warranty

Compatibility

Designed for standard residential and light commercial door lock installation requiring a 1 inch cross-bore and a 2-1/8 inch main-body bore. Compatible with 3/8 inch chuck drills and cordless drill drivers accepting the included small thread arbors.

Installation Notes

Installation is typically performed by a carpenter, locksmith, or general contractor working to local building code requirements. Before boring, confirm door thickness and lockset manufacturer bore specifications to ensure correct depth-stop setting. Use the auto centering drill guide on a marked centerline to prevent bit walk on door face veneer. Secure the door firmly before cutting to prevent movement during the bore operation.