Made with Pride in Bad Axe, MI

BR20/ER20 Series Collets

BR20/ER20 Series Collets

BR20/ER20 Tru Precision Collets (Inch)

Part NumberClamping Capacity (inch)Clamping Capacity (mm)QTY
BR20-1/2-TP .5000 - .4600 12.70 - 11.70
BR20-1/4-TP .2500 - .2100 6.35 - 5.35
BR20-1/8-TP .1250 - .0850 3.18 - 2.18
BR20-1/16-TP .0787 - .0394 2.00 - 1.00
BR20-3/8-TP .3750 - .3350 9.53 - 8.53
BR20-3/16-TP .1875 - .1475 4.76 - 3.76
BR20-3/32-TP .1181 - .0787 3.00 - 2.00
BR20-5/16-TP .3125 - .2725 7.94 - .6.94
BR20-5/32-TP .1575 - .1181 4.00 - 3.00
BR20-7/16-TP .4375 - .3975 11.11 - 10.11
BR20-7/32-TP .2362 - .1969 6.00 - 5.00
BR20-9/32-TP .3150 - .2756 8.00 - 7.00
BR20-11/32-TP .3543 - .3150 9.00 - 8.00
BR20-13/32-TP .4330 - .3937 11.00 - 10.00
BR20-15/32-TP .4724 - .4375 12.00 - 11.00

BR20/ER20 Standard Precision Collets (Inch)

Part NumberClamping Capacity (inch)Clamping Capacity (mm)QTY
BR20-7/16 .4375 - .3975 11.11 - 10.11
BR20-7/32 .2362 - .1969 6.00 - 5.00
BR20-9/32 .3150 - .2756 8.00 - 7.00
BR20-5/16 .3125 - .2725 7.94 - .6.94
BR20-5/32 .1575 - .1181 4.00 - 3.00
BR20-13/32 .4330 - .3937 11.00 - 10.00
BR20-15/32 .4724 - .4375 12.00 - 11.00
BR20-3/16 .1875 - .1475 4.76 - 3.76
BR20-3/32 .1181 - .0787 3.00 - 2.00
BR20-3/8 .3750 - .3350 9.53 - 8.53
BR20-11/32 .3543 - .3150 9.00 - 8.00
BR20-1/8 .1250 - .0850 3.18 - 2.18
BR20-1/16 .0787 - .0394 2.00 - 1.00
BR20-1/2 .5000 - .4600 12.70 - 11.70
BR20-1/4 .2500 - .2100 6.35 - 5.35

BR20/ER20 Sealed Collets (Inch) For Coolant Through Tooling

Part NumberClamping Capacity (inch)Clamping Capacity (mm)QTY
BR20-7/16 SEALED 0.4375 - 0.4177 11.11 - 10.61
BR20-3/8 SEALED .3750 -.3556 9.53 - 9.03
BR20-5/16 SEALED .3125 -.2929 7.94 - 7.44
BR20-3/16 SEALED .1875 4.76
BR20-1/8 SEALED .1250 3.18
BR20-1/2 SEALED 0.5000 - 0.4803 12.70 - 12.20
BR20-1/4 SEALED .2500 -.2303 6.35

BR20/ER20 Sealed Collets (Metric) For Coolant Through Tooling

Part NumberClamping Capacity (inch)Clamping Capacity (mm)QTY
BR20-10 SEALED 0.3937 - 0.3740 10.00 - 9.50
BR20-11 SEALED 0.4330 - 0.4134 11.00 - 10.50
BR20-12 SEALED 0.4724 - 0.4528 12.00 - 11.50
BR20-13 SEALED 0.5118 - 0.4921 13.00 - 12.50
BR20-09 SEALED 0.3543 - 0.3347 9.00 - 8.50
BR20-07 SEALED 0.2756 - 0.2559 7.00 - 6.50
BR20-08 SEALED .3543 - .3150 8.00 - 7.50
BR20-03 SEALED 0.1181 3.00
BR20-04 SEALED 0.1575 4.00
BR20-05 SEALED 0.1969 5.00
BR20-06 SEALED 0.2362 6.00

BR20/ER20 Tru Precision Collets (Metric)

Part NumberClamping Capacity (inch)Clamping Capacity (mm)QTY
BR20-01-TP .0787 - .0394 2.00 - 1.00
BR20-02-TP .1181 - .0787 3.00 - 2.00
BR20-03-TP .1575 - .1181 4.00 - 3.00
BR20-04-TP .1969 - .1575 5.00 - 4.00
BR20-05-TP .2362 - .1969 6.00 - 5.00
BR20-06-TP .2756 - .2362 7.00 - 6.00
BR20-07-TP .3150 - .2756 8.00 - 7.00
BR20-08-TP .3543 - .3150 9.00 - 8.00
BR20-09-TP .3937 - .3543 10.00 - 9.00
BR20-10-TP .4330 - .3937 11.00 - 10.00
BR20-11-TP .4724 - .4375 12.00 - 11.00
BR20-12-TP .5118 - .4724 13.00 - 12.00

BR20/ER20 Standard Precision Collets (Metric)

Part NumberClamping Capacity (inch)Clamping Capacity (mm)QTY
BR20-11 .4724 - .4375 12.00 - 11.00
BR20-12 .5118 - .4724 13.00 - 12.00
BR20-10 .4330 - .3937 11.00 - 10.00
BR20-09 .3937 - .3543 10.00 - 9.00
BR20-07 .3150 - .2756 8.00 - 7.00
BR20-02 .1181 - .0787 3.00 - 2.00
BR20-08 .3543 - .3150 9.00 - 8.00
BR20-03 .1575 - .1181 4.00 - 3.00
BR20-04 .1969 - .1575 5.00 - 4.00
BR20-05 .2362 - .1969 6.00 - 5.00
BR20-06 .2756 - .2362 7.00 - 6.00
BR20-01 .0787 - .0394 2.00 - 1.00

BR20/ER20 Rigid Tap Collets - ANSI

Part NumberTap Size (inch)Tap Size (metric)Shank Dia. (inch)Square Dia. (inch)QTY
BR20-#3/8TC 3/8 M10 .381 .286
BR20-#5/16TC 5/16 M7 M8 .381
BR20-#7/16TC 7/16 - .323 .242
BR20-#8TC #8 M4 .168 .131
BR20-#1/2TC 1/2 M12 M12.5 .367
BR20-#1/4TC 1/4 M6 M6.3 .255
BR20-#10TC #10 M4.5 M5 .168
BR20-#12TC #12 - .220 .165

BR20/ER20 Rigid Tap Collets - DIN376

Part NumberMetric Tap Size (371)Metric Tap Size (376)Shank Dia. (metric)Square Dia. (metric)QTY
BR20-M6TC-DIN376 M4 M6 4.5(.177) 3.4(.133)
BR20-M8TC-DIN376 M5 M6 M8 6.0(.236)
BR20-M10TC-DIN376 - M10 7.0(.275) 5.5(.216)
BR20-M12TC-DIN376 - M12 9.0(.354 ) 7.0(.275 )
BR20-M14TC-DIN376 - M14 11.0(.433) 9.0(.354)
BR20-M16TC-DIN376 - M16 12.0(.472) 9.0(.354)

BR20/ER20 Standard Precision Collets (Metric) - SET

Part NumberDescriptionQTY
BR20-00 Set includes one of each size above. Sets come in Standard and TP.

BR20/ER20 Standard Precision Collets (Inch) - SET

Part NumberDescriptionQTY
BR20-00 INCH Set includes one of each size above. Sets come in Standard and TP.

BR20/ER20 Sealed Collets (Inch) For Coolant Through Tooling - SET

Part NumberDescriptionQTY
BR20-00 INCH SEALED Set includes one of each size above.

BR20/ER20 Sealed Collets (Metric) For Coolant Through Tooling - SET

Part NumberDescriptionQTY
BR20-00 SEALED Set includes one of each size above.

BR20/ER20 Tru Precision Collets (Metric) - SET

Part NumberDescriptionQTY
BR20-00-TP Set includes one of each size above. Sets come in Standard and TP.

BR20/ER20 Tru Precision Collets (Inch) - SET

Part NumberDescriptionQTY
BR20-00-TP INCH Set includes one of each size above. Sets come in Standard and TP.
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