Ridgid 50510 500B Style Bolt Threader Dies, RH HS, M33-3.5in mm SI Ser A Metric [New]

Model Number: 50510. Type and Compatibility: Bolt Threading Dies for 500B 532 542 Heads. Alloy Type and RH/LH Designation: RH High-Speed. Thread Size and TPI: M33-3.5. Thread Type: S.I. Series A Metric. Ridgid 50510 Bolt Threading Dies for 500B 532 542 Heads, RH High-Speed, M33-3.5 in. mm S.I. Series A Metric. Ridgid. The Ridge Tool Company. 50510.