Single Flute Countersinks




Single flute countersinks produce excellent results for light burr-free countersinking operations, are excellent at small hole chamfers, can operate at slightly higher RPM's, and may be reground many times. Other diameters and angles can be provided as specials. Countersinks larger than 1" are not pointed.

SINGLE FLUTE COUNTERSINKS High Speed Steel
HEAD DIA SHANK DIA OVERALL LENGTH SHANK LENGTH SERIES # INCLUDED ANGLE
60° 82° 90° 100° 110° 120°
PART # PART # PART # PART # PART # PART #
             
1/8" 1/8" 1-5/8" 1-5/8" 1/8-SF 00270 00288 00306 00324 00342 00360
3/16" 3/16" 1-1/2" 1-1/2" 3/16-SF 00271 00289 00307 00325 00343 00361
1/4" 3/16" 1-1/2" 3/4" 1/4-SF 00272 00290 00308 00326 00344 00362
5/16" 1/4" 1-3/4" 7/8" 5/16-SF 00273 00291 00309 00327 00345 00363
3/8" 1/4" 1-3/4" 7/8"   3/8-SF 00274 00292 00310 00328 00346 00364
1/2" 3/8" 2-1/8" 1-1/8"   1/2-SF 00275 00293 00311 00329 00347 00365
1/2" 1/4" 2-1/8" 1-1/8" 1/2-SF-1/4 00276 00294 00312 00330 00348 00366
5/8" 3/8" 2-3/8" 1-1/8" 5/8-SF 00277 00295 00313 00331 00349 00367
5/8" 1/4" 2-3/8" 1-1/8" 5/8-SF-1/4 00278 00296 00314 00332 00350 00368
3/4" 1/2" 2-11/16" 1-5/16"   3/4-SF 00279 00297 00315 00333 00351 00369
7/8" 1/2" 2-13/16" 1-5/16"   7/8-SF 00280 00298 00316 00334 00352 00370
1" 1/2" 2-13/16" 1-5/16" 1-SF 00281 00299 00317 00335 00353 00371
1-1/4" 3/4" 3-3/8" 1-5/8" 1-1/4-SF 00282 00300 00318 00336 00354 00372
1-1/2" 3/4" 3-1/2" 1-5/8" 1-1/2-SF 00283 00301 00319 00337 00355 00373
1-3/4" 1" 4-1/4" 2-1/8"   1-3/4-SF 00284 00302 00320 00338 00356 00374
2" 1" 4-3/8" 2-1/8"   2-SF 00285 00303 00321 00339 00357 00375
2-1/2" 1" 4-3/4" 2-1/8" 2-1/2-SF 00286 00304 00322 00340 00358 00376
3" 1" 5" 2-1/8"   3-SF 00287 00305 00323 00341 00359 00377

SINGLE FLUTE COUNTERSINKS Carbide
HEAD DIA SHANK DIA OVERALL LENGTH SHANK LENGTH SERIES # INCLUDED ANGLE
60° 82° 90° 100° 110° 120°
PART # PART # PART # PART # PART # PART #
                       
1/8" 1/8" 1-1/2" 1-1/2" 1/8-SF-W 00420 00440 00460 00480 00500 00520
3/16" 3/16" 1-1/2" 1-1/2" 3/16-SF-W 00421 00441 00461 00481 00501 00521
1/4" 3/16" 1-1/2" 1-3/16" 1/4-SF-W 00422 00442 00462 00482 00502 00522
5/16" 1/4" 2-1/4" 1-3/4" 5/16-SF-W 00423 00443 00463 00483 00503 00523
3/8" 1/4" 2-1/4" 1-3/4" 3/8-SF-W 00424 00444 00464 00484 00504 00524
1/2" 3/8" 2-1/2" 2"   1/2-SF-W 00425 00445 00465 00485 00505 00525
1/2" 1/4" 2-1/4" 1-3/4"   1/2-SF-W-1/4 00426 00446 00466 00486 00506 00526
5/8" 3/8" 2-5/8" 2" 5/8-SF-W 00427 00447 00467 00487 00507 00527
5/8" 1/4" 2-3/8" 1-3/4" 5/8-SF-W-1/4 00428 00448 00468 00488 00508 00528
3/4" 1/2" 2-3/4" 2" 3/4-SF-W 00429 00449 00469 00489 00509 00529
7/8" 1/2" 2-7/8" 2"   7/8-SF-W 00430 00450 00470 00490 00510 00530
1" 1/2" 3" 2"   1-SF-W 00431 00451 00471 00491 00511 00531
1-1/4" 3/4" 3-3/8" 1-5/8" 1-1/4-SF-W 00432 00452 00472 00492 00512 00532
1-1/2" 3/4" 3-1/2" 1-5/8" 1-1/2-SF-W 00433 00453 00473 00493 00513 00533
1-3/4" 1" 4-1/4" 2-1/8" 1-3/4-SF-W 00434 00454 00474 00494 00514 00534
2" 1" 4-3/8" 2-1/8"   2-SF-W 00435 00455 00475 00495 00515 00535