Hole Saw, High Performance, 1-1/2 x 2-3/8-In. Brand_Laitner Features an interior locking mechanism

Features an interior locking mechanism (night lock)

ProTouch™ grips provide maximum comfort and reduced hand fatigue

The Design House 782920 Ball 2-Way Latch Privacy Door Knob locks from the inside with a turn-button and does not include keyed cylinders

Star Tron(TM)'s enzyme formula reduces interfacial surface tension between fuel and water thus allowing sub-micron sized H2O particles to burn away in normal combustion

the cross bore should be 2-1/8-inches in diameter and the edge bore should be 1-inch in diameter

Hole Saw, High Performance, 1-1/2 x 2-3/8-In. Brand_Laitner Features an interior locking mechanismDiablo, 1 1 2" x 2 3 8", hole saw, high performance hole saws deliver faster cutting performance & increased productivity, hole saw design provides ultimate cutting depth to bore deeper holes in single pass, variable tooth design for faster cuts with less vibration & tool free plug ejection for fast material removal, snap lock offers quick & easy change system with no down time, one snap lock mandrel fits all diablo hole saws, from 5 8" to 6"