SpanFnleart BTA INDEXABLE DRILLS TBTA-D SINGLE TUBE SYSTEM - OUTER FOUR START THREAD Diameter 1.181 - 2.559 Ø d2 ØD Ø d1 l1 L Designation D Dimension Spanner TubeLl1d1d2FlatOuter tubeInner tubeDiameter TBTA-Dx.xxxDE4-28 1.181 - 1.220 2.76 0.96 0.906 1.004 1.02 BTDO 028 BTDI 020 1.102 TBTA-Dx.xxxDE4-30.5 1.221 - 1.311 2.76 0.96 1.004 1.102 1.10 BTDO 030.5 BTDI 022 1.201 TBTA-Dx.xxxDE4-33 1.311 - 1.425 2.95 1.20 1.063 1.181 1.18 BTDO 033 BTDI 024 1.299 TBTA-Dx.xxxDE4-35.5 1.426 - 1.559 3.15 1.20 1.181 1.299 1.26 BTDO 035.5 BTDI 026 1.398 TBTA-Dx.xxxDE4-39 1.559 - 1.693 3.15 1.20 1.299 1.417 1.42 BTDO 039 BTDI 029 1.535 TBTA-Dx.xxxDE4-42.5 1.693 - 1.850 3.54 1.20 1.417 1.535 1.50 BTDO 042.5 BTDI 032 1.673 TBTA-Dx.xxxDE4-46.5 1.851 - 2.035 3.54 1.36 1.555 1.693 1.57 BTDO 046.5 BTDI 035 1.831 TBTA-Dx.xxxDE4-51 2.036 - 2.213 3.54 1.36 1.713 1.870 1.97 BTDO 051 BTDI 039 2.008 TBTA-Dx.xxxDE4-55.5 2.213 - 2.559 3.54 1.36 1.870 2.008 1.97 BTDO 055.5 BTDI 043 2.185 For inserts, see page 624. Operating guidelines on page 714. 626