ER-COLLETS ER-8 & ER-11 COLLETS ER RIGID TAPPING COLLETS WITH SQUARE DRIVE ● Collet bore is exactly tool diameter for accuracy and rigidity ● Permit synchronous tapping operations using any standard collet chuck ● Available sealed for coolant-through applications - add “S” before last 3 digits in part #. Ex. 1-CEN-321-S255. NOTE: Metric, DIN and Japanese standard sizes on request. ER-COLLET SETS Each set includes the full range of collets as shown in the tables above and to the left. COLLETS FOR HAND TAPS ER-AXIAL COMPENSATING (PULL) TAPPING COLLETS W/SQUARE DRIVE X (Pull) ● Friction-free ball bearing drive with axial compensation. Helps deter tap breakage on machines with synchronous feed or machines requiring axial compensation. ● Quick-change tap removal with solid square drive. Allows tap replacement without removing the tap collet from the chuck, while maintaining consistent tap gage length. NOTE: Metric, DIN and Japanese sizes available METRIC - INCH - DECIMAL SIZES (For inch sizes, see previous page) COLLETS FOR PIPE TAPS COLLET RANGE ER-8 ER-11 ER-16 ER-20 ER-25 ER-32 ER-40 ER-50 DEC. MM. INCH SIZES IN RANGE SEE TABLE BELOW PART # 1-CEN- .019-.039 0.5-1 1/32 160-001 .039-.079 1-2 3/64, 1/16, 5/64 160-002 200-001 250-001 .079-.118 2-3 3/32, 7/64 160-003 200-002 250-002 320-001 .118-.157 3-4 1/8, 9/64, 5/32 160-004 200-003 250-003 320-002 400-001 .157-.197 4-5 11/64, 3/16 160-005 200-004 250-004 320-003 400-002 .197-.236 5-6 13/64, 7/32, 15/64 160-006 200-005 250-005 320-004 400-003 .236-.276 6-7 1/4, 17/64 160-007 200-006 250-006 320-005 400-004 .276-.315 7-8 9/32, 19/64, 5/16 160-008 200-007 250-007 320-006 400-005 .315-.354 8-9 21/64, 11/32 160-009 200-008 250-008 320-007 400-006 .354-.394 9-10 23/64, 3/8, 25/64 160-010 200-009 250-009 320-008 400-007 .394-.433 10-11 13/32, 27/64 200-010 250-010 320-009 400-008 500-001 .433-.472 11-12 7/16, 29/64, 15/32 200-011 250-011 320-010 400-009 .472-.512 12-13 31/64, 1/2 200-012 250-012 320-011 400-010 500-002 .512-.551 13-14 33/64, 17/32, 35/64 250-013 320-012 400-011 .551-.591 14-15 9/16, 37/64 250-014 320-013 400-012 500-003 .591-.630 15-16 19/32, 39/64, 5/8 250-015 320-014 400-013 .630-.669 16-17 41/64, 21/32 320-015 400-014 500-004 .669-.709 17-18 43/64, 11/16, 45/64 320-016 400-015 .709-.748 18-19 23/32, 47/64 320-017 400-016 500-005 .748-.787 19-20 3/4, 49/64, 25/32 320-018 400-017 .787-.827 20-21 51/64, 13/16 400-018 500-006 .827-.866 21-22 53/64, 27/32, 55/64 400-019 .866-.906 22-23 7/8, 57/64 400-020 500-007 .906-.945 23-24 29/32, 59/64, 15/16 400-021 .945-.984 24-25 61/64, 31/32 400-022 500-008 .984-1.024 25-26 63/64, 1, 1.1/64 400-023 1.024-1.102 26-28 1.1/32, 1.3/64, 1.1/16, 1.5/64, 1.3/32 500-009 1.102-1.181 28-30 1.7/64, 1.1/8, 1.9/64, 1.5/32, 1.11/64 500-010 1.181-1.260 30-32 1.3/16, 1.13/64, 1.7/32, 1.15/64, 1.1/4 500-011 1.260-1.339 32-34 1.17/64, 1.9/32, 1.19/64, 1.5/16, 1.21/64 500-012 COLLET SERIES RANGE NO. PCS PART # 1-CEN- DEC. MM ER-8 .019-.197 0.5-5.0 9 80-010 ER-11 .019-.276 0.5-7.0 13 110-014 ER-16 .019-.394 0.5-10.0 10 160-011 ER-20 .019-.512 0.5-13.0 12 200-013 ER-25 .019-.630 0.5-16.0 15 250-016 ER-32 .079-.787 2.0-20.0 18 320-019 ER-40 .118-1.024 3.0-26.0 23 400-024 ER-50 .394-1.339 10.0-34.0 12 500-013 HAND TAP SIZE ER-16 ER-20 ER-25 ER-32 ER-40 PART # 1-CEN- #0-6 161-141 201-141 251-141 321-141 401-141 #8 161-168 201-168 251-168 321-168 401-168 #10 161-194 201-194 251-194 321-194 401-194 #12 161-220 201-220 251-220 321-220 401-220 1/4” 161-255 201-255 251-255 321-255 401-255 5/16” 161-318 201-318 251-318 321-318 401-318 3/8” 201-381 251-381 321-381 401-381 7/16” 201-323 251-323 321-323 401-323 1/2” 201-367 251-367 321-367 401-367 9/16” 251-429 321-429 401-429 5/8” 251-480 321-480 401-480 11/16” 321-542 401-542 3/4” 321-590 401-590 13/16” 321-652 401-652 7/8” 401-697 15/16” 401-760 1” 401-800 PIPE TAP SIZE ER-16 ER-20 ER-25 ER-32 ER-40 PART # 1-CEN- 1/16 & 1/8 PIPE - SS 251-313 321-313 401-313 1/8 PIPE - LS 251-437 321-437 401-437 1/4 PIPE 321-562 401-562 3/8 PIPE 401-700 1/2 PIPE 401-687 SERIES X ER-16 .2756 ER-20 .2756 ER-25 .3150 ER-32 .3937 ER-40 .5118 TAP SIZE ER-16 ER-20 ER-25 ER-32 ER40 PART # 1-CEN- #0-6 160-141 200-141T 250-141 320-141 400-141 #8 160-168 200-168 250-168 320-168 400-168 #10 160-194 200-194 250-194 320-194 400-194 #12 200-220 250-220 320-220 400-220 1/4” 200-255 250-255 320-255 400-255 5/16” 250-318 320-318 400-318 3/8” 250-381 320-381 400-381 7/16” 250-323 320-323 400-323 1/2” 250-367 320-367 400-367 9/16” 320-429 400-429 5/8” 400-480 11/16” 400-542 1/8 PIPE-LS 320-437 400-437 1/4 PIPE 400-562 COLLET RANGE RANGE ER-8 ER-11 DEC. MM INCH SIZES IN RANGE PART # 1-ER8- PART # 1-CEN- .019-.039 0.5-1.0 1/32 001 110-001 .039-.059 1.0-1.5 3/64 002 110-002 .059-.079 1.5-2.0 1/16, 5/64 003 110-003 .079-.098 2.0-2.5 3/32 004 110-004 .098-.118 2.5-3.0 7/64 005 110-005 .118-.138 3.0-3.5 1/8 006 110-006 .138-.157 3.5-4.0 5/32 007 110-007 .157-.177 4.0-4.5 11/64 008 110-008 .177-.197 4.5-5.0 3/16 009 110-009 .197-.217 5.0-5.5 - 110-010 .217-.236 5.5-6.0 7/32 - 110-011 .236-.256 6.0-6.5 15/64, 1/4 - 110-012 .256-.276 6.5-7.0 17/64 - 110-013 - 1647 - Toll Free Fax Email Houston Bass Tool & Supply, Inc. 800-442-0042 (713) 681-4931
[email protected] (713) 682-1889 www.basstool.com
Bass Tool Catalog 2025
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