Hole Saw, High Performance, 4-1/2 x 2-3/8-In. Martin's it has a triple O-ring

it has a triple O-ring sealed air chamber

24" Mechanical Pick Up Tool

closed cell foam padding with core technology helps reduce pressure on kneecap for extra comfort

Listed and Complies with Underwriter’s Laboratories Specifications 174

Fully submersible

Hole Saw, High Performance, 4-1/2 x 2-3/8-In. Martin's it has a triple O-ringDiablo, 4 1 2" x 2 3 8", hole saw, high performance delivers faster cutting performance & increased productivity, 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, 1 snap lock mandrel fits all diablo hole saws, from 5 8" to 6" diameter, for use with wood,