Ridgid 96497 Model 535 36 RPM 115 Volt Threading Machine Only w/Cutter 820 Maintains the ruggedness of the industry workhorse while adding the features that makes the Threading operation more productive. A Large chip tray and oil reservoir make the 535 ideal for longer uninterrupted Threading. The Model 535 features a High clearance carriage making the Threading operation easier and a generous top cover area that is ideal for keeping tools and work related materials Handy. The 535 is designed around maximum uptime With the upgrades that matter most to the pipe working professional. Other features include Speed chuck With Rocker-action Jaws centers and grips work Piece instantly. Length gauge for quickaccurate cut-off. The 535 uses model 816/817 semiautomaticmodel 815A self-opening or model 811A quick-opening die heads.