4PCS LOCK INSTALLATION HOLE SAW SET
2pcs hole saw: 1”(25mm), 2-1/8”(54mm) 
Cutting depth of the hole saw: 50mm 
1pc arbor for hole saw 
Shrank size 3/8"(9.5mm) 
Size of the drill: 6x76mm 
ABS positioning plastic frame 
Adjustable thickness of the door from 1-3/8" to 1-3/4" (35- 45mm) 
Adjustable of depth from 2-3/8" to 2-3/4" (60-70mm)