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Product Description
BRTB Heavy Duty Ball Lock Retainer, for Shaped Punches
This heavy duty ball lock retainer for shaped punches, BRTB, give higher quality parts, longer punch life & drastically reduced downtime.
The hardened backing plate works to prevent the punch shank from pentrating the punch plate, Backing plates spread the load over a large area by covering the entire surface of the retainer
Specification
Steel - 8620, SNCM220 equiv. 58-60HRC
Retainer includes: 2 threaded dowels, 2 set screws, 1 ball release screw, 2 cap screws and backing plate