Holemaker Uni Shank Tinite Cutter 6Pc Set Accessories Sets Gpi Opening the cap stops the Opening the cap stops the discharge The three piece 4 in 1 Clamp Kit includes: Sliding Arm Clamp Extended Block V Pad All Strong Hand Tools® Utility Clamps are made of high quality heat treated steel and nickel chrome plated for strength and durability TITANIUM NITRIDE COATING The Titanium Nitride coating increases tool life by providing the following benefits: Increased surface hardness to 85HRC Especially resistant to cold welding STEP HARDENED PROCESS Cutter is manufactured with extremely hard tooth tips for increased cutter performance while maintaining a softer body which is less susceptible to breakage