For best results, insert an accessory bit all the way into the tool and then back it out slightly before tightening down. This provides plenty of shank for the collet or chuck to hold onto. When polishing precious metals such as gold and silver, use this bit with the #421 polishing compound (jeweler`s rouge) and apply lightly.
- Fits mandrel No. 401 (Catalog ID: 40061184)
- A soft felt disc with a 1" diameter
- Ideal for polishing most metal surfaces and plastics