Door Lock Installation Kit, with 1 Inch Hole Saw (2 Inch Depth) & 2-1/8 Inch Hol

Easy to Use: Step 1. Secure the jig with screw; Step 2. Use the 1” hole saw to drill hole at the latch position; Step 3. Use the 2-1/8” hole saw to drill hole on one side of the door; Step 4. Use the 2-1/8” hole saw to drill hole on another side of the door.

eBay