The Accu-Flange is a nonmarring machineable clamping flange collar that users can configure to perform a wide range of applications such as a pulley, cam, or component-mounting device. The easyto-adjust integral clamp has a double-split design and relief groove that retains perpendicularity and will not mar expensive shafts. The collars are available in steel, stainless steel, and aluminum, with or without a keyway and in six standard bore sizes. Stafford Mfg. Corp., Box 277, North Reading, MA 01864, (800) 695-5551,