HEAD CHANGE REAMERS - BTA-R SERIES SINGLE TUBE SYSTEM - INNER SINGLE START THREAD Diameter 0.571- 2.559 d2 d1 l1 L Dimension Tube Grade Designation D L l1 d1 d2 Part No. Diameter TB103 BTA-Rx.xxxSI1-12-xxx 0.571 - 0.591 2.05 0.91 0.453 0.390 BTSE012A 0.472 BTA-Rx.xxxSI1-12-xxx 0.591 - 0.610 2.05 0.91 0.465 0.402 BTSE012B 0.472 BTA-Rx.xxxSI1-13-xxx 0.611 - 0.630 2.05 0.91 0.488 0.425 BTSE013A 0.512 BTA-Rx.xxxSI1-13-xxx 0.630 - 0.650 2.05 0.91 0.500 0.437 BTSE013B 0.512 BTA-Rx.xxxSI1-14-xxx 0.650 - 67.913 2.05 0.91 0.528 0.465 BTSE014A 0.551 BTA-Rx.xxxSI1-14-xxx 0.680 - 0.709 2.05 0.91 0.539 0.476 BTSE014B 0.551 BTA-Rx.xxxSI1-15-xxx 0.709 - 0.748 2.05 0.91 0.567 0.504 BTSE015 0.591 BTA-Rx.xxxSI1-16.5-xxx 0.748 - 0.787 2.24 0.91 0.606 0.543 BTSE016.5 0.650 BTA-Rx.xxxSI1-18-xxx 0.787 - 0.866 2.24 0.98 0.650 0.571 BTSE018 0.709 BTA-Rx.xxxSI1-20-xxx 0.866 - 0.984 2.24 0.98 0.748 0.630 BTSE020 0.787 BTA-Rx.xxxSI1-22-xxx 0.984 - 1.063 2.64 0.98 0.787 0.669 BTSE022 0.866 BTA-Rx.xxxSI1-24-xxx 1.063 - 1.181 2.64 0.98 0.866 0.748 BTSE024 0.945 BTA-Rx.xxxSI1-26-xxx 1.181 - 1.259 2.64 0.98 0.945 0.827 BTSE026 1.024 BTA-Rx.xxxSI1-28-xxx 1.260 - 1.338 3.15 0.98 1.024 0.906 BTSE028 1.102 BTA-Rx.xxxSI1-30-xxx 1.339 - 1.456 3.15 1.57 1.063 0.945 BTSE030 1.181 BTA-Rx.xxxSI1-32-xxx 1.457 - 1.574 3.15 1.57 1.181 1.063 BTSE032 1.260 BTA-Rx.xxxSI1-36-xxx 1.575 - 1.732 3.54 1.57 1.299 1.181 BTSE036 1.417 BTA-Rx.xxxSI1-39-xxx 1.732 - 1.850 3.54 1.57 1.457 1.339 BTSE039 1.535 BTA-Rx.xxxSI1-43-xxx 1.850 - 2.047 3.54 1.57 1.614 1.457 BTSE043 1.693 BTA-Rx.xxxSI1-47-xxx 2.047 - 2.244 3.54 1.57 1.732 1.575 BTSE047 1.850 BTA-Rx.xxxSI1-51-xxx 2.244 - 2.401 3.54 1.57 1.929 1.772 BTSE051 2.008 BTA-Rx.xxxSI1-56-xxx 2.402 - 2.559 3.54 1.57 2.087 1.929 BTSE056 2.205 Example: BTA-R0.571SI1-12-B45 = on request • Diameter of reamer: 0.571" • B = chip backward design (F = chip forward design is available for through holes) • Entering angle: 45 deg. Operating guidelines on page 714. 650