Retainer, Tamco/Toku part number T25119008, listed at Crowder Supply as TK-T25119008. Retaining the tool steel is its whole job. Worn retention lets the shank hammer against the bore and turns a cheap part into an expensive front head.

Give us the model and serial off your machine and we will confirm the fit; the full diagram library and the Toku tool catalog are the other two places to start. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.

• Part number: T25119008
• Manufacturer: Tamco/Toku
• Crowder SKU: TK-T25119008