Ryobi 672036001 PK2 Collet Adaptors - 1/4" Pack of 2 Genuine OEM Ryobi parts Replaces: 670344002, 983579001, 670344005 and 982987001 Fits Ryobi: RE180PL2 Peak HP Plunge Router, RE180PL1 Corded Router, RE180PL Corded Router, RE1803BK Corded Router, RE1803-1BK Corded Router, RE180PL1G Plunge Base Router Fits Ridgid: R2200 Heavy Duty 2Hp Router Combo Kit, R29302 Heavy Duty 2Hp Router Combo Kit