RAM & HAND PUMP HYD DRIVER

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The Greenlee Round Hole Punches make instrument hole cutting for 1"", 2-1/4"" and 3-1/8"" holes quick and easy. Here's how it works:(1) Layout hole location, draw centerlines so th at they extend beyond the hole size to be punched. (2) Drill proper size pilot hole in the center. (3) Put drive screw through die and pilot hole. (4) Thread on punch until both die and punch are ight against metal. (5) Line up center lines of the hole with marks on outside of the die. (6) Turn drive screw with open end or box wrench (clockwise) until hole is punched. (7) Remove punch from drive screw and the metal halves will fall out. NOTE: You can use the Hydraulic Ram Kit (P/N:7646) with the round hole punches instead of turning the drive screw with a wrench. Show more