DEEP HOLE BTA-STYLE INDEXABLE DRILLS • Exceptional hole tolerances • Excellent surface finish • Superior hole straightness • Precision concentricity - BTA cartridge-style indexable drills - TBTA-A & TBTA-B for small diameters - TBTA-C for economy on standard tolerances - TBTA-D for high productivity - TBTA-L for large diameters - BTA brazed - BTA reamers - Tubes - Technical Information 592