Cutting Diameter Description Series Page Length 1.57 - BTA Reamer Head .236 - .984 BTRW 655 5.91 Shank System 1.57 - BTA Reamer Head .236 - .984 BTRM 656 5.91 Shank System BT Reamer Bar for 3.54 - .236 - .984 BTA Reamer Heads BTR0_MT 657 L1 5.91 L MT Shank BT Reamer Bar for Ød 1.57 - L1 .236 - .984 BTA Reamer Heads BTR_ST 657 L 3.94 ST Shank Ø d1 Tube Ø d2 Ød ØD .433 - 8.898 - Single Tube System BTSI 658 H L Inner Four Start Thread d1 Tube d2 d D .472 - 8.898 - Single Tube System BTSE 659 H L Outer Single Start Thread d2 Tube D d1 d H .280 - .472 - Single Tube System BTSO 660 L Outer Single Start Thread d2H7 d DH8 H d1 H7 D L d dyL Double Tube System d2 d1 d .709 - 6.063 - BTDO, BTDI 661 D Inner Four Start Thread H H dy d L L Outer Tube Inner Tube L1 L2 L3 N1-MXLS L5 L4 N-A D D2 D3 D1 .724 - 4.878 Adaptor Type ‘S’ DTC_S 662 L1 L4 L3 L2 L5 N-A BT or CATV D2 D D1 .724 - 7.240 Adaptor Type ‘R’ DTC_R 662 B C D3 487