Cut smooth, perfect tenons with radiused shoulders. Cutters run vibration-free while being driven by an electric drill and yield the same accuracy when used with a hand brace. The anodised aluminium body has been balanced to eliminate vibration, and an integral level vial makes in-line cutting accurate. The back end of the blade is safely contoured to avoid anything extending beyond the revolving body. The body has a built-in honing guide for easy sharpening. The blade is adjustable to cut the exact size in both dry & green wood. Eight sizes from 5/8" to 1" cut 2.3/4" long tenons. Sizes 1.1/4" to 2" will cut 4.1/4" long tenons, for structural connections. All have hex shanks; sizes 5/8" to 1" are for use in electric drill with a 3/8" chuck. 1/4" to 2" need more torque to drive and should be used in larger electric drills with a 1/2" chuck. These are indispensable tools when it comes to making rustic furniture, where there is a necessity to produce clean cuts. Weight: 2.5573622392 pounds, Manufacturer: Veritas