6-Flute Chatterless-Countersinks™






The flutes of the 6-flute Chatterless-Countersinks™ are designed with staggered cutting angles to eliminate the harmonics that cause chatter in conventional tools. Our tools feature a positive shearing action, are designed to take heavy cuts and produce exceptionally smooth seats. These six fluted countersinks give long service life because the cutting load is distributed over six cutting edges. Use them in your milling machine, drill press, screw machine, lathes, automatics, special machines, feed units, and hand tools. Available in a wide range of standard angles and sizes. Don't see what you need? Submit your request for special angles, diameters, double angles, pilots, or radii.

All Carbide Countersinks over 1-1/2" diameter are individually tipped teeth.
6-FLUTE CHATTERLESS-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" CK-1/8 02370 02390 02410 02430 02450 02470
3/16" 3/16" 1-1/2" 1-1/2" CK-3/16 02371 02391 02411 02431 02451 02471
1/4" 3/16" 1-1/2" 3/4" CK-1/4 02372 02392 02412 02432 02452 02472
5/16" 1/4" 1-3/4" 7/8" CK-5/16 02373 02393 02413 02433 02453 02473
3/8" 1/4" 1-3/4" 7/8" CK-3/8 02374 02394 02414 02434 02454 02474
1/2" 3/8" 2-1/8" 1-1/8" CK-1/2 02375 02395 02415 02435 02455 02475
1/2" 1/4" 2-1/8" 1-1/8" CK-1/2-14 02376 02396 02416 02436 02456 02476
5/8" 3/8" 2-3/8" 1-1/8" CK-5/8 02377 02397 02417 02437 02457 02477
5/8" 1/4" 2-3/8" 1-1/8" CK-5/8-1/4 02378 02398 02418 02438 02458 02478
3/4" 1/2" 2-11/16" 1-5/16" CK-3/4 02379 02399 02419 02439 02459 02479
7/8" 1/2" 2-13/16" 1-5/16" CK-7/8 02380 02400 02420 02440 02460 02480
1" 1/2" 2-13/16" 1-5/16" CK-1 02381 02401 02421 02441 02461 02481
1-1/4" 3/4" 3-3/8" 1-5/8" CK-1-1/4 02382 02402 02422 02442 02462 02482
1-1/2" 3/4" 3-1/2" 1-5/8" CK-1-1/2 02383 02403 02423 02443 02463 02483
1-3/4" 1" 4-1/4" 2-1/8" CK-1-3/4 02384 02404 02424 02444 02464 02484
2" 1" 4-3/8" 2-1/8" CK-2 02385 02405 02425 02445 02465 02485
2-1/2" 1" 4-3/4" 2-1/8" CK-2-1/2 02386 02406 02426 02446 02466 02486
3" 1" 5" 2-1/8" CK-3 02387 02407 02427 02447 02467 02487

6-FLUTE CHATTERLESS-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" CK-1/8-W 02520 02540 02560 02580 02600 02620
3/16" 3/16" 1-1/2" 1-1/2" CK-3/16-W 02521 02541 02561 02581 02601 02621
1/4" 3/16" 1-1/2" 1-3/16" CK-1/4-W 02522 02542 02562 02582 02602 02622
5/16" 1/4" 2-1/4" 1-3/4" CK-5/16-W 02523 02543 02563 02583 02603 02623
3/8" 1/4" 2-1/4" 1-3/4" CK-3/8-W 02524 02544 02564 02584 02604 02624
1/2" 3/8" 2-1/2" 2" CK-1/2-W 02525 02545 02565 02585 02605 02625
1/2" 1/4" 2-1/4" 1-3/4" CK-1/2-W-1/4 02526 02546 02566 02586 02606 02626
5/8" 3/8" 2-5/8" 2" CK-5/8-W 02527 02547 02567 02587 02607 02627
5/8" 1/4" 2-3/8" 1-3/4" CK-5/8-W-1/4 02528 02548 02568 02588 02608 02628
3/4" 1/2" 2-3/4" 2" CK-3/4-W 02529 02549 02569 02589 02609 02629
7/8" 1/2" 2-7/8" 2" CK-7/8-W 02530 02550 02570 02590 02610 02630
1" 1/2" 3" 2" CK-1-W 02531 02551 02571 02591 02611 02631
1-1/4" 3/4" 3-3/8" 1-5/8" CK-1-1/4-W 02532 02552 02572 02592 02612 02632
1-1/2" 3/4" 3-1/2" 1-5/8" CK-1-1/2-W 02533 02553 02573 02593 02613 02633
1-3/4" 1" 4-1/4" 2-1/8" CK-1-3/4-W 02534 02554 02574 02594 02614 02634
2" 1" 4-3/8" 2-1/8" CK-2-W 02535 02555 02575 02595 02615 02635