Chain Size: 40
Pitch: 1/2"
Number Of Teeth: 12
Plate Thickness: .284
Keyway: 3/16 x 3/32"
Pitch Diameter: 1.91
Outside Diameter: 2.17
Interchange: MARTIN 40BS12 3/4
Bore: 3/4"
Length Through Bore: 7/8"
Weight: 0.4
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