BTA INDEXABLE DRILLS TBTA-L FOR LARGE DIAMETERS SINGLE TUBE SYSTEM - OUTER FOUR START THREAD Diameter 2.441 - 7.244 d2 D d1 l1 L Dimension Tube Designation D L l1 d1 d2 Part Diameter TBTA-Lx.xxxSE4-56A 2.441 - 2.559 4.72 1.36 1.870 2.008 BTSI 056A 2.205 TBTA-Lx.xxxSE4-56B 2.559 - 2.637 6.30 2.44 1.850 2.047 BTSI 056B 2.205 TBTA-Lx.xxxSE4-62 2.638 - 2.874 6.30 2.44 2.087 2.283 BTSI 062 2.441 TBTA-Lx.xxxSE4-68 2.874 - 3.149 6.30 2.44 2.283 2.480 BTSI 068 2.677 TBTA-Lx.xxxSE4-75 3.150 - 3.425 7.48 3.23 2.520 2.756 BTSI 075 2.953 TBTA-Lx.xxxSE4-82 3.425 - 3.937 7.48 3.23 2.795 3.031 BTSI 082 3.228 TBTA-Lx.xxxSE4-94 3.937 - 4.409 7.48 3.23 3.268 3.504 BTSI 094 3.701 TBTA-Lx.xxxSE4-106 4.409 - 4.881 8.27 4.02 3.740 3.976 BTSI 106 4.173 TBTA-Lx.xxxSE4-118 4.882 - 5.354 8.27 4.02 4.213 4.449 BTSI 118 4.646 TBTA-Lx.xxxSE4-130 5.354 - 5.826 8.66 4.02 4.685 4.921 BTSI 130 5.118 TBTA-Lx.xxxSE4-142 5.827 - 6.299 8.66 4.80 5.157 5.394 BTSI 142 5.591 TBTA-Lx.xxxSE4-154 6.299 - 6.771 8.66 4.80 5.630 5.630 BTSI 154 6.063 TBTA-Lx.xxxSE4-166 6.772 - 7.244 8.66 4.80 6.102 6.339 BTSI 166 6.535 For inserts, see page 628. Operating guidelines on page 714. 630