MSA-13

Ultra-precision screw-cap saw arbors for carbide slitting saws — inch AB and metric MSA lines, ground to tenths so thin carbide saws run true.

• Inch AB line: eight arbors from AB-250 (1/4") to AB-1250 (1-1/4"), including a long-shank AB-1000-1 (1" arbor on a 1" x 5" shank)
• Published cap-screw torque specs per size: AB-250 29 in-lb, AB-375 47 in-lb, AB-500 and AB-625 202 in-lb, AB-875 through AB-1000-1 415 in-lb, AB-1250 600 in-lb — screw and hex key included with every arbor
• Metric MSA line: six arbors from MSA-05 (5 mm) to MSA-22 (22 mm) on 75-100 mm shanks, with metric screw torques from 11 in-lb (M3) to 180 in-lb (M6)
• AB tolerances: inside diameter +.0001"/+.0003", shank diameter -.0001"/-.0003", cap diameter +.0000"/-.0002" — MSA holds inside diameter concentric to shank within .005 mm
• Total thickness of saws/spacers should not exceed 50% of cap length; arbor caps with longer cap length are available (excludes metric)
• RobbJack arbors are the tightest tolerances in the industry and hold less than .0002" runout

From the RobbJack Applications Guide.