Milescraft 1338 Lock Mate PLUS – Self-Clamping Door Lock Installation Kit

Speed up professional door install projects

Meet the Milescraft 1338 Lock Mate PLUS, a self-clamping door lock jig designed to elevate speed and control across wood, hollow-core, composite, and metal doors. Its non-marring rubber clamp grips the door securely without screws or surface damage, so you can position and start drilling in seconds rather than minutes. The design emphasizes clean setup, precise guidance, and reliable repeatability for teams handling multiple openings in a day.

Durability and accuracy go hand in hand here. The jig features long-lasting cobalt alloy bi-metal hole saws that cut through wood and metal with less resistance and fewer burrs. A built-in metal bushing within the drill guides protects the jig and helps extend its life, while the large, stepped guide reduces drift and tear-out. For best results, drill from one side until the pilot tip exits, then complete the cut from the opposite side to maintain a smooth edge on both faces.

Versatility is built in. The Lock Mate PLUS easily switches between 1-3/8” and 1-3/4” door thickness, and backs offsets adjust to 2-3/8” or 2-3/4”, letting you standardize hardware placement across several doors without swapping tools. A dedicated dead bolt locator helps you space knobs and locks consistently, while the included pilot bit and mandrel fit both hole saw sizes. You can also attach the spacer plate for thinner doors or remove it to accommodate thicker cores, enabling a wide range of standard installations.

Why choose Lock Mate PLUS

• Self clamps to the door without screws or surface damage
• Includes 2-1/8” and 1” cobalt alloy bi-metal hole saws
• Hole saws efficiently cut wood and metal, including hollow-core doors
• Metal-lined, stepped drill guide bushings protect the jig and extend life
• Adjusts for 1-3/8” and 1-3/4” door thicknesses
• Backset options of 2-3/8” and 2-3/4” for common hardware
• Compatible with most standard lock sizes
• Dead bolt locator ensures evenly spaced knobs and deadbolts
• Pilot bit and mandrel included to fit both hole saws

What’s in the box

• Lock Mate PLUS jig
• Spacer plate for 1-3/8” doors
• Dead bolt locator attachment
• ¼” pilot bit
• Mandrel with adapter for both hole saws
• 2-1/8” and 1” cobalt alloy bi-metal hole saws

Whether you’re renovating a home, outfitting an office, or performing frequent door hardware updates, this jig is designed to support efficient workflows while helping to protect door surfaces and maintain alignment consistency across multiple openings. While outcomes can vary by door type and hardware, the Lock Mate PLUS is built to be a dependable companion for professional installers and serious DIYers alike.