Our punch dies are sized to conduit sizes, not actual hole sizes. OEM Trane CTR-1349 CTR01349 Contactor at Bangladesh. Replaces 40 AMP, 3 Pole, 240-480-600/60, 24V. Available for various American Standard & Trane systems Made of Hardened Tool Steel with Black Oxide Finish. Conduit Fitting Size: 3, Actual Hole Size: 3.5 TECo THA042 4 Conduit Punch and Die for etric Hydraulic Knock Out... Iec Knockout Punch THA042 4" Conduit Punch And For Metric Hydraulic Knock Out Driver M20x1 5mm Thread 1/8 Din Punch Electricians use these sizes because conduits are measured by the inner diameter of the tube, not their outer diameter. TEMCo TH0397 Manual knockout Punch Kit ½ - 1-1/4 Electrical Conduit Hole sizes Punches Materials: Steel, Stainless Steel, Brass, Copper, Aluminum (soft alloys only, not for use with 7075 or other super alloys), Fiberglass, Plastic and more. We've provided you with a handy table below that shows the actual hole size produced by our punch die/conduit sizes in this set. Punch die sizes are equal to conduit tube sizes. That means, for example, a 1 punch die will correctly punch for a 1 conduit tube (which has an actual hole size of roughly 1.33).
