DURABIT®1 tool bits are designed to run at high RPM. Run all the Tri Tool® Model 300 Series squaring machines at full speed. Do not "dive" the bit into the work. Make sure that when starting the cut on interrupted or out-of-square ends, you advance the tool bit slowly against the tube end with light feed pressure until a continuous chip is achieved (bit cuts all the way around end). Once the bit has a full chip load, use a moderate to heavy feed pressure to finish the cut. NEVER stop the tool bit while in the cut. Back the bit away from the cut at full speed and then you can stop the motor. These instructions also apply for Durabit 2 and 3 bits.
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03-6764586
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