Martin Solid B Sprocket Bored to Size 60 / 1 and 50 similar items

New open box no box. . May have some staining and light rust marks from being in storage . SPECIFICATIONS CALIPER DIAMETER 4.0721 in CHAIN PITCH 3/4 in FINISHED BORE 1 5/8 in WIDTH ACROSS TEETH 0.459 in MATERIAL Steel HUB LENGTH THRU 0.791 in NO. OF STRANDS ACROSS 1 OUTSIDE DIA. [MIN] 4.9450 in OUTSIDE DIA. 4.9450 in BORE TYPE Bored to Size SINGLE STRAND TOOTH THICKNESS 0.459 in NO. OF SCREWS 1 HUB PROJECTION 0.8 in NO. OF TEETH 19 CHAIN NO. 60 MARTIN NO. 60BS19 PITCH DIAMETER [MIN] 4.557 in KEYWAY SIZE 3/8 x 3/16 HUB DIA. 3 1/2 in PITCH DIAMETER 4.557 in LENGTH THROUGH BORE 1 1/4 in KEYWAY w/Keyway Set Screw SET SCREW SIZE 3/8-16 x 3/8 SPROCKET STYLE B INCH/METRIC Inch HARDENED TEETH Without Hardened Teeth WEIGHT 3.28 LB EAN OR UPC 697950016498