● Arbor Identification System BT30 K - M08 - 45 Arbor Size Double-face Thread Size for Length from clamping spindle Clamping Gauge Line ■ How to Attach Head (1) When clamping the head on the arbor, make sure there is no dust or chips inside (Fig. 1). Do NOT put lubricant on the clamping portion. Ensure there are NO chips between the arbor and head Fig.1 (2) Attach the head on the arbor and fix it using the wrench (Fig. 2). Ref. to the Table 1 for Recommended tightening Note) The wrench is NOT included in the products. Ta ble1 Recommended Head Tightening Torque Thread Size for Clamping Wrench Double width [mm] Recommended tightening torque [N・m] Ref. to the Table 1 for the wrench size M8 12 23 and recommended tightening torque M10 15 46 M12 19 80 Fig.2 M16 24 90 M (3) Confirm that the head is fixed firmly on the arbor (Fig. 3). No clearance In Milling between Fig.3 ■ Frequently Asked Question Q: Can the double-face clamping arbor be mounted on a general BT spindle? A: Yes. It can be used as a general BT arbor with a general BT spindle. No clearance Clearance It can be used as a general BT arbor, though the advantage of the double-face clamping will not be shown. Double-face clamping arbor Double-face clamping arbor mounted on double-face clamping spindle mounted on general spindle M59