Hole Drilling Calculator

Calculate precise drill bit sizes, hole depths, and drilling specifications for perfect smart lock installations. Ensure accurate measurements for professional results.

Hole Drilling Calculator

Enter lock and door specifications to calculate drilling requirements

Lock Specifications

inches
Standard: 2.125" (54mm)
inches
Standard: 2.375" or 2.75"
inches
Standard: 1" (25mm)
×inches

Door Specifications

inches

Drilling Preferences

Drilling Specifications

Enter specifications to see drilling requirements

Drill Bit Guide

Drill bit recommendations will appear after calculation

Precision Drilling

Calculate exact drill bit sizes and hole depths for perfect lock cylinder and latch installations with professional accuracy.

Tool Recommendations

Get specific drill bit types, sizes, and drilling methods optimized for different door materials and lock types.

Measurement Guide

Detailed specifications for backset distances, hole positioning, and template alignment for flawless installations.