Superior Electric D04 Aftermarket Carbon Brush Set Replaces Ridgid 0502025007 fits Ryobi BTS21 & R4516 Dimensions (LxWxH): 0.674 inch x 0.664 inch x 0.272 inch JAPANESE TOYO TANSO CARBON Replaces Ridgid 0502025007, Dewalt 614367-00 & 5140024-30 Compatible with: Ryobi BTS20R-1, BTS21, BTSI 6, BTS211 | Ridgid RTS31