About This

• 【Dual-Rail Micro-Adjustment for Vertical Grooves】​ Both guide rails feature 7-shaped universal adjustment screws for precise left-right micro-tuning. This ensures perfectly vertical lock pockets even on warped doors, making it ideal for DIYers retrofitting older wooden doors where the original mortise has drifted out of square.
• 【Wide Application】​ The mortising jig kit is widely used to open new lock hole, open eccentric lock hole, change password lock and change fingerprint lock on wooden doors. You can also use this lock mortiser kit to modify door locks. Perfect for beginners, professional installers, contractors, and homeowners upgrading to smart locks. Pro Tip: For beginners, please practice on scrap wood of equal thickness before working on your finished door.
• 【Drill Requirement】​ Requires a drill with 1/2" chuck (12.7mm capacity) and speed of 2000 RPM or higher. Compatible with DeWalt 20V MAX, Milwaukee M18, Makita 18V LXT, Craftsman V20, and similar 1/2" chuck drills. Not compatible with standard 3/8" home drills (Black+Decker 20V, Avid Power 20V, Bosch 12V, etc.).
• 【Operating Mode】​ Hammer drills must be set to rotary-only mode (hammer function OFF). The 10mm shank exceeds 3/8" (9.5mm) chuck capacity and will not fit standard 3/8" home drills.
• 【Equipped with A Industrial-Grade Sliding Bearing】 A sliding bearing is added between the positioning ring and the bearing seat, it rotates synchronously with the rod. This design reduces friction, enhances operational smoothness, and prolongs the machine's service life.
• 【High Efficiency & Precise Slotting】​ The mortise lock installation kit is much faster, easier, and more precise than using a drill and chisels. Simply attach the jig to your drill to achieve a precise mortise in under 10 minutes. Extremely precise, accurate!
• 【More Stable Operation】 Guide rail fixing screws and enlarged clamping feet work in tandem to boost operational stability.
• 【3 Tungsten Steel Drill Bits】​ Includes three high-hardness tungsten steel drill bits (18/22/24 mm--0.79/0.87/0.95 inch) specifically sharpened for wooden doors. The set also comes with rulers, chisels, wrenches, and a plastic toolbox.
• 【Applicable Door Range】 As a precision mortising jig, it fits wooden doors 0.98" -3.93" (25–100 mm) thick, with a max groove depth of 5.1" (130 mm) and length of 10.2" (260 mm). Covers standard entry doors, interior solid-core doors, and heavier exterior doors—one jig for your entire home renovation.