BTA DRILL BRAZED - BTA-SERIES SINGLE TUBE SYSTEM - OUTER FOUR START THREAD Diameter 1.559 - 2.559 Ø d2 Ø d1 ØD l1 L Dimension Tube Grade Designation D L l1 d1 d2 Part Diameter TB103 TB203 TB253 BTA x.xxx SE4-36 1.559 - 1.598 2.89 1.20 1.181 1.299 BTSI036 1.417 BTA x.xxx SE4-36 1.599 - 1.646 2.89 1.20 1.181 1.299 BTSI036 1.417 BTA x.xxx SE4-36 1.646 - 1.693 2.89 1.20 1.181 1.299 BTSI036 1.417 BTA x.xxx SE4-39 1.693 - 1.744 2.95 1.20 1.299 1.417 BTSI039 1.535 BTA x.xxx SE4-39 1.744 - 1.795 2.95 1.20 1.299 1.417 BTSI039 1.535 BTA x.xxx SE4-39 1.796 - 1.850 2.95 1.20 1.299 1.417 BTSI039 1.535 BTA x.xxx SE4-43 1.851 - 1.909 2.95 1.20 1.417 1.535 BTSI043 1.693 BTA x.xxx SE4-43 1.910 - 1.972 2.95 1.20 1.417 1.535 BTSI043 1.693 BTA x.xxx SE4-43 1.973 - 2.035 2.95 1.20 1.417 1.535 BTSI043 1.693 BTA x.xxx SE4-47 2.036 - 2.094 3.23 1.36 1.555 1.693 BTSI047 1.850 BTA x.xxx SE4-47 2.095 - 2.154 3.23 1.36 1.555 1.693 BTSI047 1.850 BTA x.xxx SE4-47 2.154 - 2.213 3.23 1.36 1.555 1.693 BTSI047 1.850 BTA x.xxx SE4-51 2.213 - 2.299 3.31 1.36 1.713 1.850 BTSI051 2.008 BTA x.xxx SE4-51 2.300 - 2.386 3.31 1.36 1.713 1.850 BTSI051 2.008 BTA x.xxx SE4-51 2.386 - 2.472 3.31 1.36 1.713 1.850 BTSI051 2.008 BTA x.xxx SE4-51 2.473 - 2.559 3.31 1.36 1.713 1.850 BTSI051 2.008 BTA x.xxx SE4-56 2.386 - 2.472 3.31 1.36 1.870 2.008 BTSI056 2.205 BTA x.xxx SE4-56 2.473 - 2.559 3.31 1.36 1.870 2.008 BTSI056 2.205 Operating guidelines on page 714. = on request 634