AUTO TOOLING CONTENTS Technical Information for Auto Tools Small Diameter Cut-off of Single-hole BackTurning of Single-hole Threading of Single-hole 180 Technical Information for Double-hole Type Parting off of Double-hole Frong Turning of Double-hole Back Turning of Double-hole Grooving & Turning of Double-hole Full Radius of Double-hole Threading of Double-hole The Holderfor Double-hole