Spindle “Tommy” Bars are use to aid in the operation of opening and closing scrolling chucks.
“Tommy” bars can be hard on your fingers when tightening or loosening a chuck or removing a tool from the spindle. These molded rubber end caps (see picture below) give a more comfortable and secure grip. They also prevent spindle bars from rolling off your bench. These covers are sold separately as P/N 4058. Spindle bars and rubber covers can also be purchased as a pair as P/N 4059.