Cutting Diameter Description Series Page Length BTA Indexable Drill - 3 Cartridge, 1.496 - 4.212 100 x D Double Tube System - Outer Four TBTA3_DE4 599 Start Thread BTA Indexable Drill - 5 Cartridge 4.213 - 6.653 100 x D Single Tube System - Outer Four TBTA5_SE4 603 Start Thread BTA Indexable Drill - 5 Cartridge 4.213 - 6.653 100 x D Single Tube System - Inner Single TBTA5_SI1 604 Start Thread BTA Indexable Drill - 5 Cartridge, 4.213 - 6.653 100 x D Double Tube System - Outer Four TBTA5_DE4 605 Start Head BTA Indexable Drill - 7 Cartridge, 6.654 - 9.173 100 x D Single Tube System - Outer Four TBTA7_SE4 608 Start Head BTA Indexable Drill - 7 Cartridge, 6.654 - 9.685 100 x D Single Tube System - Inner Single TBTA7_SI1 609 Start Thread BTA Indexable Drill for Small 1.142 - 1.496 100 x D Diameters - Single Tube System, TBTA-A _SE4 613 Outer Four Start Thread BTA Indexable Drill for Small 1.142 - 1.496 100 x D Diameters - Single Tube System, TBTA-A_SI1 614 Inner Single Start Thread BTA Indexable Drills for Small .630 - 1.122 100 x D Diameters - Single Tube System, TBTA-B_SE4 617 Outer Four Start Thread BTA Indexable Drill for Small .630 - 1.122 100 x D Diameters - Single Tube System - TBTA-B_SI1 618 Inner Single Start Thread 484