Center Punch Automatic No Punch Type Center Punch Tip Size 3/32 in Tip Type Point Shank Shape Round Shank Diameter 5/16 in Grip Style Knurled Hole Diameter 3/32 in Overall Length 4 in Container Type Box Material Applications Metal Plastic Wood Includes Striking Cap No Measurement Type SAE Includes Handguard No Taper Length 1 1/2 in Includes Handle No Adjustable Blow Force No