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ITS BORE BT-FC-MB SS Fig. 1 LB DCONWS SS Fig. 2 LPR LB DCONWS BD
LPR
MB Modular Boring System
with BT MAS-403 Face Contact
ADB Tapered Shanks

Designation SS DCONWS LPR BD LB Fig. Lbs 20°
BT40 FC MB50
40 1.9685 1.890 - .827 1. 1.98 HW 6.0
BT40 FC MB50X120 ADB 40 1.9685 4.724 - 3.661 2. 4.19 HW 5.0
BT40 FC MB63 40 2.4803 2.598 - - 1. 2.65 HW 8.0
BT50 FC MB50 50 1.9685 2.598 - 1.102 1. 7.28 HW 6.0
BT50 FC MB50X120 ADB 50 1.9685 4.724 2.362 3.228 2. 9.26 HW 6.0
BT50 FC MB63 50 2.4803 2.953 - 1.457 1. 8.16 HW 8.0
BT50 FC MB63X150 ADB 50 2.4803 5.906 2.756 4.409 2. 12.79 HW 8.0
BT50 FC MB80 50 3.1496 2.953 - 1.457 1. 8.82 HW 8.0
BT50 FC MB80X180 ADB 50 3.1496 7.087 - 5.591 2. 16.54 HW 8.0

(a)

BTB-MB SS
MB Modular Connection
System with BT MAS-403 CRKS DCONWS
Type B Taper Shanks
LB
LPR
(a) Cutting edge position
Designation SS DCONWS LB LPR CRKS Lbs
BTB40 MB50 40 1.9685 .827 1.890 M16 2.12 HW 6.0
BTB40 MB63 40 2.4803 - 2.598 M16 2.95 HW 8.0
BTB50 MB50X66 50 1.9685 1.102 2.598 M24 8.57 HW 6.0
BTB50 MB63X75 50 2.4803 1.457 2.953 M24 8.82 HW 8.0
BTB50 MB80 50 3.1496 1.457 2.953 M24 9.48 HW 8.0
• Verify that the weight of the entire tool assembly does not exceed the machine spindle's carrying capability.

(a)

ISO-MB SS
MB Modular Connection System
with ISO 297 Taper Shanks CRKS DCONWS

LB
LPR (a) Cutting edge position

Designation SS DCONWS LB LPR CRKS Lbs
ISO 40-MB50 40 1.9685 1.417 1.890 UNC 5/8"-11 2.28 HW 6.0
ISO 40-MB63 40 2.4803 - 2.362 UNC 5/8"-11 3.00 HW 8.0
ISO 50-MB50 50 1.9685 1.299 1.890 UNC 1.0"-8 6.23 HW 6.0
ISO 50-MB63 50 2.4803 1.614 2.205 UNC 1.0"-8 6.49 HW 8.0
ISO 50-MB80 50 3.1496 1.772 2.362 UNC 1.0"-8 7.85 HW 8.0
• Verify that the weight of the entire tool assembly does not exceed the machine spindle's carrying capability.

460 ISCAR