Protective cover for hand-operated MICROMOT machines with standard 4/5" (20mm) collar- For work with saw blades, cutting discs, milling bits, grinding tools, steel brushes and polishing tools- Maximum useable tool diameter 7/8" (22mm), easy to mount- Made in Japan- Dimensions: 3-54L x 1-77W x 0-39H SKU: PXTECH292 006274289444