The JMR Tubing Notcher, No. TN1000, from Trick Tools has a 2-1/2" O.D. capacity, which is a positive zero point for a centered notch, and is capable of notching in a 210-degree arc. Angle changes can be made effortlessly due to a thrust bearing at the pivot point and offset copes can be performed with ease. This design has been engineered to perform offset notches without the use of a shim kit. Users will loosen the two allen bolts on the bottom of the shaft housing, raise the housing to a desired height up to 1" and start notching.