The tube clamping device is a metallic device which is clamped on the tube with an adjustable chain. After clamping the tube clamp the magnetic drilling machine is placed on the device, which gets fix to the tube clamp by switching ON its magnet. With the help of magnetic drilling machines' proper RPM the annular cutter makes a perfect hole in the tube.
Generally a HSS annular cutter is used to make holes in tubes and pipes, as the TCT annular cutters has more chances of cutting teeth breakage due to curved surfaces of tubes and pipes. As annular cutters are hollow there is no dead zone resistance. The cutting takes place only on the periphery of the hole to be made. Annular cutters distribute load equally on the periphery of the hole with its multiple cutting edges, thus the required thrust and energy is also much less comparatively.
Step 1: As per the diameter of the pipe select the correct size of pipe clamp.
Step 2: As per the diameter of the hole select the correct capacity magnetic base drilling machine. Choose any brand of mag drill but prefer the one which has variable speed controls and torque controls.
Step 3: Select the correct annular cutter as per the type of pipe or tube material. Close any brand but should be HSS not TCT annular cutter.
Step 4: Clamp the tube clamp device on the tube.
Step 5: Put the magnetic drilling machine on the tube clamp.
Step 6: Insert the annular cutter in the arbor.
Step 7: Switch ON the magnet of the machine and start the motor to drill.
Step 8: Start to drill with min feed, do not crash the cutter on the material while starting to drill.
Step 9: Drill with steady feed and with good amount of drilling lubricant.
In just above 9 steps you can make quick holes in pipes and tubes with more accuracy, precision, roundness and finsih as compared to drilling with twist drill bits.
