Description of Drilax Tungsten Carbide Stainless Discharge
Industrial grade 3/4 inch stainless hole saw, tungsten carbide steel wall hole saw with pilot drill bit. Spring load for easy discharge and Allen wrench included. Standard shank size 3/8 inch for cordless and electric drills. Tungsten carbide hole saws are strengthened with brazing technology ensuring a longer drilling life - 50x longer than standard 3/4 hole saw - carbide tip. Also can be used as a tube notcher hole saw and hole cutter for steel thanks to the split-point pilot drill bit. Steel hole saw cutter can be used with many materials such as plastic, wood, plexiglass, stainless steel. Carbide tungsten cutting teeth cut fast and clean. Pilot drill bit prevents walking and allows accurate hole placement.
Ordered a 3/4 inch hole saw for precision. Got a 20mm hole cutter. Although the 20mm hole cutter is a little under 4/10000 of an inch more, I ordered it to avoid the oversized hole that usually results when using a hole saw for thinner materials. Used it anyway and found the carbide teeth are thicker than other similar cutters I own. The extra thickness requires a lot more cutting fluid and drilling effort, even in 1" to 8" material.
Pros
Can also be used as a hole saw for punching through pipes and as a hole cutter for steel thanks to the split center drill.