Modular Milling Tools BT Tool Holder - ISO M Threads BT40/50 - Replaceable Integrated Shank Order No. d2 d C1 L1 L M ArborType IBT40DM08050 13 8.5 15 23 50 M8 IBT40DM10057 18 10.5 21 30 57 M10 IBT40DM12080 21 12.5 25 53 80 M12 BT40 IBT40DM16087 28 17.0 31 60 87 M16 IBT40FMC403060 36 28.0 40 30 60 M18 IBT40FMC406090 36 28.0 40 60 90 M18 IBT50FMC5003065 48 36.0 50 30 65 M25 IBT50FMC50080115 48 36.0 50 80 115 M25 BT50 IBT50FMC50130165 48 36.0 50 130 165 M25 Customize available. Pull Studs L1 L2 D M E° L3 Dimensions (mm) Order No. For Shank L1 L2 L3 D E° M IP40T01 35 25 28 15 45° M16 BT40 IP40T02 35 25 28 15 60° M16 BT40 IP50T01 45 40 35 23 45° M24 BT50 IP50T02 45 40 35 23 60° M24 BT50 A429