Ridgid® 52920 Hole Saw, Variable Pitch, 3 in dia, 1-1/2 in Cutting Depth, 3/5 TPI, M3 High Speed Steel Cutting Edge

Ridgid® hole saw, variable pitch, 3 in dia, 1-1/2 in cutting depth, 3/5 TPI, M3 high speed steel cutting edge, use arbor: R2/R2S/R3/R6/R7, applicable materials: wood, stainless steel, cast iron, brass and aluminum.

Features

• Bi-metal construction
• Variable pitch 3/5 TPI
• Positive tooth rake
• Steel 115 RPM, 55 RPM stainless steel, 75 RPM cast iron, 150 RPM brass and 170 RPM aluminum
• Note: use Ridgid® thread cutting oil on all metal except cast iron
• Model: M76