Centre Punches - Round Head Induction Hardened Carbon Steel Knurled Body for Secure Grip Specification Size (Inch.) Inner Box (Qty.) Outer Box (Qty.) ROUND HEAD 1/16" 1500 5/16" 1000 3/32" 1000 1/8" 1000 9/64" 1000 5/32" 600 3/16" 600 1/4" 300 SQUARE HEAD 1/16" 1000 3/32" 1000 1/8" 1000 5/32" 800 3/16" 800 1/4" 600 3/16" 300