Jacobs Taper Spindle with Bearings for Delta and Rockwell 17 Inch Drill Presses. Will also fit some Walker Turner Models. Will fit:17-410 17-412 17-413 17-415 17-416 17-417 17-420 17-422 17-423 17-425 17-426 17-427 17-430 17-431 17-432 17-43 3 17-435 17-436 17-437 17-440 17-441 17-442 17-443 17-445 17-446 17-447 17-450 17-451 17-452 17-453 17-455 17-456 17-460 17-461 17-462 17-463 17-465 17-466 17-467 17-520 17-521 17-522 17-523 17-524 17-525 17-526 17-527 17-528 17-530 17-531 17-533 17-535 17-536 17-537 17-538 17-540 17-541 17-542 17-543 17-544 17-545 17-546 17-546 17-547 17-548 17-605 17-606 17-607 17-608 17-610 17-611 17-612 17-613 17-624 17-625 17-626 17-627 17-630 17-631 17-632 17-633 17-634 17-635 17-636 17-637 17-410 17-412 17-413 17-415 17-416 17-417 17-420 17-422 17-423 17-425 17-426 17-427 17-430 17-431 17-432 17-43 3 17-435 17-436 17-437 17-440 17-441 17-442 17-443 17-445 17-446 17-447 17-450 17-451 17-452 17-453 17-455 17-456 17-460 17-461 17-462 17-463 17-465 17-466 17-467 17-520 17-521 17-522 17-523 17-524 17-525 17-526 17-527 17-528 17-530 17-531 17-533 17-535 17-536 17-537 17-538 17-540 17-541 17-542 17-543 17-544 17-545 17-546 17-546 17-547 17-548 17-600 17-605 17-606 17-607 17-608 17-610 17-611 17-612 17-613 17-624 17-625 17-626 17-627 17-630 17-631 17-632 17-633 17-634 17-635 17-636 17-637