• Used To Lossen And Tighten The Collet Nut To Change Bits

• Has A Built-In Screwdriver That Can Be Used On The #402 Mandrel Or Sanding Drum Mandrel With Screw

• Hole Provides An Easy Way To Hang The Wrench During Storage

• For Use With Dremel Rotary Tool Models And Select Dremel Accesories

Warning this product can expose you to chemicals including Lead, which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.