Designed for: 017, 018, 020, 021, 023, 025, 029, 039. MS170, MS180, MS192. MS200, MS210, MS230, MS250, MS270, MS310. BG56, BG66, BG88. TS400, TS460. Machined From One Block of Steel, Not A Casting! Puller comes with black oxide finish preventing corrosion to assure many years of service.