Prick Punch Automatic No Punch Type Prick Punch Tip Size 3/16 in Tip Type Point Shank Shape Hexagon Shank Width 5/16 in Grip Style Plain Hole Diameter 3/16 in Overall Length 4 1/2 in Container Type Bulk Material Applications Metal Includes Striking Cap No Measurement Type SAE Includes Handguard No Taper Length 1 in Tether Ready No Includes Handle No Corrosion-Resistant Yes Features Prick Punches are Used to Scribe Lines in Metal Before Cutting or Riveting Finish Black Oxide