DELTA 34-183 Tenoning Jig Adjustable 90 degree positive stop for accurate repetitive cuts 90 degree to 45 degree back stop with adjustable 90 degree positive stop for secure support of angular stock Multi-position control levers for convenient easy adjustment Better locking leverage, extra-large crank handle for fast, easy clamping of work Built-in provisions for adjustment and alignment to maintain cutting accuracy Full grip-feed handles for positive operating control and user safety