Info:Martin 12L075 Solid Type DF-1 Stock Timing Pulley, 0.375 to 0.813 in Minimum Plain/Reborable Bore, 1.402 in OD, 12 Grooves, 1.432 in Dia Pitch, 0.812 in W Face
Info:Browning® Gearbelt® 1054410 Type 1 Synchronous Timing Pulley With Flange, 1/2 in Finished Bore, 1.402 in OD, 12 Grooves, 1.432 in Dia Pitch, 3/4 in W Face