Qualified Boring Bars
Our Qualified Boring Bars are designed for high-precision machining, offering efficiency and accuracy. The qualified length ensures quicker tool changes, reducing downtime. With an overall length tolerance of ± 0.001 and a minimum bore diameter tolerance of ± 0.0005, these bars provide exceptional precision. The precision ground flat guarantees tool orientation consistency. Available with AlTiN+ coating for enhanced wear resistance and extended tool life, or uncoated. Perfect for demanding applications where accuracy is crucial.
A (Minimum Bore) | B (Maximum Depth) | S (Shank Diameter) | OAL | Tool # | Uncoated EDP # | AlTiN+ EDP # |
---|---|---|---|---|---|---|
0.048 | 0.150 | 0.1250 | 1.50 | BQ050150 | 217201 | 217963 |
0.048 | 0.200 | 0.1250 | 1.50 | BQ050200 | 217204 | 217966 |
0.048 | 0.300 | 0.1250 | 1.50 | BQ050300 | 217207 | 217969 |
0.048 | 0.400 | 0.1250 | 1.50 | BQ050400 | 217210 | 217972 |
0.058 | 0.150 | 0.1250 | 1.50 | BQ060150 | 217213 | 217975 |
0.058 | 0.200 | 0.1250 | 1.50 | BQ060200 | 217216 | 217978 |
0.058 | 0.300 | 0.1250 | 1.50 | BQ060300 | 217219 | 217981 |
0.058 | 0.400 | 0.1250 | 1.50 | BQ060400 | 217222 | 217984 |
0.058 | 0.500 | 0.1250 | 1.50 | BQ060500 | 217225 | 217987 |
0.078 | 0.150 | 0.1250 | 1.50 | BQ080150 | 217228 | 217990 |
0.078 | 0.200 | 0.1250 | 1.50 | BQ080200 | 217231 | 217993 |
0.078 | 0.300 | 0.1250 | 1.50 | BQ080300 | 217234 | 217996 |
0.078 | 0.400 | 0.1250 | 1.50 | BQ080400 | 217237 | 217999 |
0.078 | 0.500 | 0.1250 | 1.50 | BQ080500 | 217240 | 218002 |
0.078 | 0.600 | 0.1250 | 1.50 | BQ080600 | 217243 | 218005 |
0.098 | 0.150 | 0.1250 | 1.50 | BQ100150 | 217246 | 218008 |
0.098 | 0.200 | 0.1250 | 1.50 | BQ100200 | 217249 | 218011 |
0.098 | 0.300 | 0.1250 | 1.50 | BQ100300 | 217252 | 218014 |
0.098 | 0.400 | 0.1250 | 1.50 | BQ100400 | 217255 | 218017 |
0.098 | 0.500 | 0.1250 | 1.50 | BQ100500 | 217258 | 218020 |
0.098 | 0.600 | 0.1250 | 1.50 | BQ100600 | 217261 | 218023 |
0.098 | 0.700 | 0.1250 | 1.50 | BQ100700 | 217264 | 218026 |
0.108 | 0.150 | 0.1250 | 1.50 | BQ110150 | 217267 | 218029 |
0.108 | 0.200 | 0.1250 | 1.50 | BQ110200 | 217270 | 218032 |
0.108 | 0.300 | 0.1250 | 1.50 | BQ110300 | 217273 | 218035 |
0.108 | 0.400 | 0.1250 | 1.50 | BQ110400 | 217276 | 218038 |
0.108 | 0.500 | 0.1250 | 1.50 | BQ110500 | 217279 | 218041 |
0.108 | 0.600 | 0.1250 | 1.50 | BQ110600 | 217282 | 218044 |
0.108 | 0.700 | 0.1250 | 1.50 | BQ110700 | 217285 | 218047 |
0.118 | 0.250 | 0.1875 | 2.00 | BQ120250 | 217288 | 218050 |
0.118 | 0.350 | 0.1875 | 2.00 | BQ120350 | 217291 | 218053 |
0.118 | 0.500 | 0.1875 | 2.00 | BQ120500 | 217294 | 218056 |
0.118 | 0.600 | 0.1875 | 2.00 | BQ120600 | 217297 | 218059 |
0.118 | 0.700 | 0.1875 | 2.00 | BQ120700 | 217300 | 218062 |
0.118 | 0.800 | 0.1875 | 2.00 | BQ120800 | 217303 | 218065 |
0.138 | 0.250 | 0.1875 | 2.00 | BQ140250 | 217306 | 218068 |
0.138 | 0.400 | 0.1875 | 2.00 | BQ140400 | 217309 | 218071 |
0.138 | 0.500 | 0.1875 | 2.00 | BQ140500 | 217312 | 218074 |
0.138 | 0.600 | 0.1875 | 2.00 | BQ140600 | 217315 | 218077 |
0.138 | 0.700 | 0.1875 | 2.00 | BQ140700 | 217318 | 218080 |
0.138 | 0.750 | 0.1875 | 2.00 | BQ140750 | 217321 | 218083 |
0.138 | 0.800 | 0.1875 | 2.00 | BQ140800 | 217324 | 218086 |
0.158 | 0.250 | 0.1875 | 2.00 | BQ160250 | 217330 | 218092 |
0.158 | 0.400 | 0.1875 | 2.00 | BQ160400 | 217333 | 218095 |
0.158 | 0.500 | 0.1875 | 2.00 | BQ160500 | 217336 | 218098 |
0.158 | 0.600 | 0.1875 | 2.00 | BQ160600 | 217339 | 218101 |
0.158 | 0.750 | 0.1875 | 2.00 | BQ160750 | 217342 | 218104 |
0.158 | 0.900 | 0.1875 | 2.00 | BQ160900 | 217345 | 218107 |
0.158 | 1.000 | 0.1875 | 2.00 | BQ1601000 | 217327 | 218089 |
0.178 | 0.350 | 0.2500 | 2.50 | BQ180350 | 217360 | 218122 |
0.178 | 0.500 | 0.2500 | 2.50 | BQ180500 | 217363 | 218125 |
0.178 | 0.600 | 0.2500 | 2.50 | BQ180600 | 217366 | 218128 |
0.178 | 0.750 | 0.2500 | 2.50 | BQ180750 | 217369 | 218131 |
0.178 | 0.900 | 0.2500 | 2.50 | BQ180900 | 217372 | 218134 |
0.178 | 1.000 | 0.2500 | 2.50 | BQ1801000 | 217348 | 218110 |
0.178 | 1.100 | 0.2500 | 2.50 | BQ1801100 | 217351 | 218113 |
0.178 | 1.250 | 0.2500 | 2.50 | BQ1801250 | 217354 | 218116 |
0.178 | 1.500 | 0.2500 | 2.50 | BQ1801500 | 217357 | 218119 |
0.198 | 0.400 | 0.2500 | 2.50 | BQ200400 | 217387 | 218149 |
0.198 | 0.500 | 0.2500 | 2.50 | BQ200500 | 217390 | 218152 |
0.198 | 0.600 | 0.2500 | 2.50 | BQ200600 | 217393 | 218155 |
0.198 | 0.700 | 0.2500 | 2.50 | BQ200700 | 217396 | 218158 |
0.198 | 0.800 | 0.2500 | 2.50 | BQ200800 | 217399 | 218161 |
0.198 | 0.900 | 0.2500 | 2.50 | BQ200900 | 217402 | 218164 |
0.198 | 1.000 | 0.2500 | 2.50 | BQ2001000 | 217375 | 218137 |
0.198 | 1.100 | 0.2500 | 2.50 | BQ2001100 | 217378 | 218140 |
0.198 | 1.200 | 0.2500 | 2.50 | BQ2001200 | 217381 | 218143 |
0.198 | 1.300 | 0.2500 | 2.50 | BQ2001300 | 217384 | 218146 |
0.228 | 0.400 | 0.3125 | 2.50 | BQ230400 | 217429 | 218191 |
0.228 | 0.500 | 0.3125 | 2.50 | BQ230500 | 217432 | 218194 |
0.228 | 0.600 | 0.3125 | 2.50 | BQ230600 | 217435 | 218197 |
0.228 | 0.700 | 0.3125 | 2.50 | BQ230700 | 217438 | 218200 |
0.228 | 0.800 | 0.3125 | 2.50 | BQ230800 | 217441 | 218203 |
0.228 | 0.900 | 0.3125 | 2.50 | BQ230900 | 217444 | 218206 |
0.228 | 1.000 | 0.3125 | 2.50 | BQ2301000 | 217405 | 218167 |
0.228 | 1.100 | 0.3125 | 2.50 | BQ2301100 | 217408 | 218170 |
0.228 | 1.150 | 0.3125 | 2.50 | BQ2301150 | 217411 | 218173 |
0.228 | 1.200 | 0.3125 | 2.50 | BQ2301200 | 217414 | 218176 |
0.228 | 1.250 | 0.3125 | 2.50 | BQ2301250 | 217417 | 218179 |
0.228 | 1.400 | 0.3125 | 2.50 | BQ2301400 | 217420 | 218182 |
0.228 | 1.500 | 0.3125 | 2.50 | BQ2301500 | 217423 | 218185 |
0.228 | 1.600 | 0.3125 | 3.00 | BQ2301600 | 217426 | 218188 |
0.288 | 0.500 | 0.3125 | 2.50 | BQ290500 | 217468 | 218230 |
0.288 | 0.600 | 0.3125 | 2.50 | BQ290600 | 217471 | 218233 |
0.288 | 0.750 | 0.3125 | 2.50 | BQ290750 | 217474 | 218236 |
0.288 | 0.900 | 0.3125 | 2.50 | BQ290900 | 217477 | 218239 |
0.288 | 1.000 | 0.3125 | 2.50 | BQ2901000 | 217447 | 218209 |
0.288 | 1.100 | 0.3125 | 2.50 | BQ2901100 | 217450 | 218212 |
0.288 | 1.250 | 0.3125 | 2.50 | BQ2901250 | 217453 | 218215 |
0.288 | 1.350 | 0.3125 | 2.50 | BQ2901350 | 217456 | 218218 |
0.288 | 1.500 | 0.3125 | 2.50 | BQ2901500 | 217459 | 218221 |
0.288 | 1.600 | 0.3125 | 3.00 | BQ2901600 | 217462 | 218224 |
0.288 | 1.750 | 0.3125 | 3.00 | BQ2901750 | 217465 | 218227 |
0.318 | 0.500 | 0.3750 | 2.50 | BQ320500 | 217507 | 218269 |
0.318 | 0.600 | 0.3750 | 2.50 | BQ320600 | 217510 | 218272 |
0.318 | 0.750 | 0.3750 | 2.50 | BQ320750 | 217513 | 218275 |
0.318 | 0.900 | 0.3750 | 2.50 | BQ320900 | 217516 | 218278 |
0.318 | 1.000 | 0.3750 | 2.50 | BQ3201000 | 217480 | 218242 |
0.318 | 1.100 | 0.3750 | 2.50 | BQ3201100 | 217483 | 218245 |
0.318 | 1.250 | 0.3750 | 2.50 | BQ3201250 | 217486 | 218248 |
0.318 | 1.500 | 0.3750 | 2.50 | BQ3201500 | 217489 | 218251 |
0.318 | 1.600 | 0.3750 | 3.00 | BQ3201600 | 217492 | 218254 |
0.318 | 1.800 | 0.3750 | 3.00 | BQ3201800 | 217495 | 218257 |
0.318 | 2.000 | 0.3750 | 4.00 | BQ3202000 | 217498 | 218260 |
0.318 | 2.500 | 0.3750 | 4.00 | BQ3202500 | 217501 | 218263 |
0.318 | 3.000 | 0.3750 | 4.00 | BQ3203000 | 217504 | 218266 |
0.358 | 0.500 | 0.3750 | 2.50 | BQ360500 | 217546 | 218308 |
0.358 | 0.600 | 0.3750 | 2.50 | BQ360600 | 217549 | 218311 |
0.358 | 0.750 | 0.3750 | 2.50 | BQ360750 | 217552 | 218314 |
0.358 | 0.900 | 0.3750 | 2.50 | BQ360900 | 217555 | 218317 |
0.358 | 1.000 | 0.3750 | 2.50 | BQ3601000 | 217519 | 218281 |
0.358 | 1.150 | 0.3750 | 2.50 | BQ3601150 | 217522 | 218284 |
0.358 | 1.250 | 0.3750 | 2.50 | BQ3601250 | 217525 | 218287 |
0.358 | 1.500 | 0.3750 | 2.50 | BQ3601500 | 217528 | 218290 |
0.358 | 1.600 | 0.3750 | 3.00 | BQ3601600 | 217531 | 218293 |
0.358 | 1.800 | 0.3750 | 3.00 | BQ3601800 | 217534 | 218296 |
0.358 | 2.000 | 0.3750 | 4.00 | BQ3602000 | 217537 | 218299 |
0.358 | 2.500 | 0.3750 | 4.00 | BQ3602500 | 217540 | 218302 |
0.358 | 3.000 | 0.3750 | 4.00 | BQ3603000 | 217543 | 218305 |
0.488 | 0.750 | 0.5000 | 3.00 | BQ490750 | 217579 | 218341 |
0.488 | 1.000 | 0.5000 | 3.00 | BQ4901000 | 217558 | 218320 |
0.488 | 1.250 | 0.5000 | 3.00 | BQ4901250 | 217561 | 218323 |
0.488 | 1.500 | 0.5000 | 3.00 | BQ4901500 | 217564 | 218326 |
0.488 | 2.000 | 0.5000 | 4.00 | BQ4902000 | 217567 | 218329 |
0.488 | 2.500 | 0.5000 | 4.00 | BQ4902500 | 217570 | 218332 |
0.488 | 2.600 | 0.5000 | 4.00 | BQ4902600 | 217573 | 218335 |
0.488 | 2.750 | 0.5000 | 4.00 | BQ4902750 | 217576 | 218338 |