Bi-Metal Variable Pitch Hole Saws offer a wide variety of metal cutting applications. They produce smoother cleaner cuts with less vibration. Cuts aluminum, brass, copper, cast iron, and stainless steel; wood; and plastic. Can be used in air and electric drills, boring mills, drill presses, lathes, portable and magnetic drills. Cutting edge of M3 HSS molybdenum. Cut depth is 1-1/2. Mandrels not included. Made by MK Morse.
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Backer, cutting edge, and cap work together to provide faster, longer-lasting cutting action.
Bi-Metal design bonds M3 cutting edge to fatigue resistant backer
Positive rake teeth clear chips better for longer life and easier cutting
Teeth stay sharper and make smoother cuts
Have had many hole saws in the past. None like this one. They are awesome. Quick change out to another size, easy to get the plug out, cuts they fiberglass, and wood bulkheads easily with my festool ct12 drill. Sometimes to much torque. Highly recomended. Pricy but you get what you pay for here.
Corpus Christi, Tx
i would purchase again
Very good quality, satisfied
3 3/4" hole saw
Easily cut thru 1 5/8 thick GRP with balsa core cabin top. I used it with a 19.2 v cordless drill which provided plenty of torque to do the job.