Base unitArbor integraltype DC DC ø100 ø100 Milling Lead angle 0°/ 2° MECH MECH-BT50-A (Base unit) APMX1 BT50 APMX 38 LH LF 101.8 MECH-BT50SA Arbor integral type (Base unit + 1 front piece + clamp blot) APMX1 BT50 APMX LH 38 LF 101.8 Toolholder dimensions Availa-DescriptionbilityInsertsFlutesStagesA.R.R.R. Dimension (mm) Coolant hole Weight (kg) R DC LF LH APMX APMX1 M MECH 050R11-4T-BT50-A MTO 24 4 6 +23 -7 50 125 81 55 10 No 4.6 MECH 063R17-4T-BT50-A MTO 20 4 63 5.4 080R17-4T-BT50-A MTO 5 +19 -7 80 143 100 75 16 No 6.8 100R17-6T-BT50-A MTO 30 6 100 8.5 MECH 050R11-4T-BT50SA MTO 32 4 8 +23 -7 50 143 99 73 55 No 4.8 MECH 063R17-4T-BT50SA MTO 63 5.8 28 4 080R17-4T-BT50SA MTO 7 +19 -7 80 173 130 104 75 No 7.6 100R17-6T-BT50SA MTO 42 6 100 9.8 For installation of notched insert, see page M83. Coat Anti-seize Compound thinly on portion of taper and thread when insert is fixed. Toolholder structure End mill Base unit Front piece (1pc) Clamp bolt MECH 050R11-4T-BT50SA MECH050R11-4T-BT50-A MECH050R11-4T-F HH12X35 063R17-4T-BT50SA = MECH063R17-4T-BT50-A + MECH063R17-4T-F + HH12X40 080R17-4T-BT50SA MECH080R17-4T-BT50-A MECH080R17-4T-F HH16X40 100R17-6T-BT50SA MECH100R17-6T-BT50-A MECH100R17-6T-F HH20X40 N : Standard item R : Right hand only L : Left hand only U : Check availability Recommended cutting conditions: M84 M81