
Included: 4 standard countersinks and 4 4-tooth chamfer cutters The chamfer cutters make tapered plugs for filling countersunk holes. Diameter sizes include 6mm, 10mm, 13mm and 16mm (1 4 , 3 8 , 1 2 , 8 5 ) Shank Diameter: 9.3mm 8pcs Punched Set: Makes perfect plugs for drill holes. Easy and safe to use and store. Material: Carbon steel, titanium coated, durable and high precision. Reduce drilling resistance, reduce heat, make the drill more durable.