JointPRO quickly and accurately creates strong doweled joints. Interchangeable hardened steel bushing blocks allow you to drill up to six matching holes per set-up. The self-clamping jig securely holds workpieces in place. JointPRO includes two detachable clamps allowing for horizontal or vertical positioning. This doweling jig includes non-slip pads, preventing both slipping and marring. Dont let your workpiece slip!