Chassis Punch Set 5 8 To 1 3 8 GRTD35 1.5T 75T version Overload Protection facility DDC003 75T version Overload Protection facility is factory set to prevent abuse 5mm deep and 178mm high 32 & 35 mm) New 3 Point Design On Punch For Easier Cutting New Packaging Upgraded Tool Steel Specification For Increased Life & Performance Cut Stainless Steel More Easily Than Previous Design For Simple Cutting Of Neat Holes In Sheetmetal Simple To Use: Drill A Hole 1 32" Larger Than Drive Screw Insert Screw Through Die Place Screw Through Hole In Metal & Screw On Punch Turn Drive Screw With Spanner Or Wrench Until Metal Is Cut 3 Point Cutting Action