Combination Face Mill Adapter, Form AD, BT 40 Short, Clamping Diameter: 27mm

Taper shank, spigots, and contact surfaces ground on collar. All shanks hard turned for smooth running!. With RFID/Balluffchip bore. Advantage: The double contact between the taper and the flat flange creates a more stable and precise clamping situation: Better surface quality Longer tool life times Consistent seating in the headstock even at high speeds Smaller radial run-outA BT double contact arbor can also be used in a standard BT machine spindle - and vice versa. The advantages of the double contact are however achieved only when a double contact arbor and double contact spindle are used together. Application: With drive key for face mills with longitudinal slot, e.g. DIN 841. With drive ring for face mills with crosswise slot DIN 1880 and cutter heads DIN 1830. Supplied with: Drive key, face mill drive ring, and lock screw. Optional extras: Pull studs PS No. 308760 308806. Special toggle wrench No. 309840. Overhang dimension A: 55 mm a: 1 mm External Dia D: 48 mm Spare milling cutter lock screw No. 309860 / 309861: 27 Spare drive ring No. 309870: 27 Suitable toggle wrench No. 309840: 27