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- Yes, Features Prick Punches are Used to Scribe Lines in Metal Before Cutting or Riveting, Finish Black Oxide