and the bottom portion sets the offset distance between the needle and the guide that is being used

Multiquip C844

Dry Use Recommended — quick setup with any 7″ polisher (wet use may extend life but requires a water-fed tool)

Ishii Tile Cutter

The range of useful length adjustments: 3 feet to 4 foot 8 inches

Crain 635 Opto Electric Stapler Kit Pool Plaster Diamond Disc 120 Grit and the bottom portion setsThe Crain 635 Opto Power Tacker has a ruggedized electronic control board including an optical sensor that fires in response to the motion of a tough sliding trigger. The delicate mechanical microswitch of previous tackers, which frequently required repair, has been eliminated. This tacker also has a long, slender nose that more easily parts yarns to penetrate down to the carpet's backing. The short overall height, narrow profile, and rounded cap