Overall Diameter: 23/32"Overall Length: 2-7/8"Cutting Edge Length: 1-1/4"Shank: 1/2"Plywood Mortising Bits Are Nominally Sized To Match The Actual Thickness Of The Plywood To Produce A Tight-Fitting JointCreates Cutting Diameter To Match Thickness Of 3/4" PlywoodProduces a Tight Fit When Mortising Standard PlywoodMicrograin Carbide Tips Provide Superior Wear Resistance And Long Life