IS Counterbore/Countersink
Freer Tool & Supply’s IS counterbore and countersink collection supports clean, accurate hole finishing and proper fastener seating in machining, fabrication, and assembly work. Counterbores create flat-bottom recesses for socket head and cap screws, while countersinks add the chamfer needed for flat head screws and smoother hole entrances—helping improve fit, alignment, and overall assembly quality.
Quality Import CF55056206 9/16 Dia-HSS Pilot
SKU: FTS-CF55056206
MPN: 381–3349
Quality Import CF55056208 9/16 Dia-HSS Pilot
SKU: FTS-CF55056208
MPN: 381–3445
Quality Import CF55056210 9/16 Dia-HSS Pilot
SKU: FTS-CF55056210
MPN: 381–3529
Quality Import CF55056212 9/16 Dia-HSS Pilot
SKU: FTS-CF55056212
MPN: 381–3621
Quality Import CF55056214 9/16 Dia-HSS Pilot
SKU: FTS-CF55056214
MPN: 381–3715
Quality Import CF55062506 5/8 Dia-HSS Pilot
SKU: FTS-CF55062506
MPN: 381–3357
Quality Import CF55062508 5/8 Dia-HSS Pilot
SKU: FTS-CF55062508
MPN: 381–3453
Quality Import CF55062510 5/8 Dia-HSS Pilot
SKU: FTS-CF55062510
MPN: 381–3537
Quality Import CF55062512 5/8X3/8 SHK PILOT
SKU: FTS-CF55062512
MPN: 381-3629
Quality Import CF55062514 5/8 Dia-HSS Pilot
SKU: FTS-CF55062514
MPN: 381–3717
Quality Import CF55062516 5/8 Dia-HSS Pilot
SKU: FTS-CF55062516
MPN: 381–3821
Quality Import CG50K83 39 Pc. HSS Interchangeable Pilot Counterbore Set
SKU: FTS-CG50K83
MPN: K83
Quality Import CG50K84 39 Pc. HSS Interchangeable Pilot Counterbore Set
SKU: FTS-CG50K84
MPN: K84
Severance BC5420628 5/16" Size-1/4" Shank-Single End Inside Deburring Cutter
SKU: FTS-BC5420628
MPN: 20628
Severance BC5420629 3/8" Size-1/4" Shank-Single End Inside Deburring Cutter
SKU: FTS-BC5420629
MPN: 20629
Severance BC5420639 5/8" Size-1/4" Shank-Single End Inside Deburring Cutter
SKU: FTS-BC5420639
MPN: 20639
Severance BC5420640 5/8" Size-3/8" Shank-Single End Inside Deburring Cutter
SKU: FTS-BC5420640
MPN: 20640
Severance BC5420688 5/16" Size-1/4" Shank-Single End Inside Deburring Cutter
SKU: FTS-BC5420688
MPN: 20688
Severance BC5420689 3/8" Size-1/4" Shank-Single End Inside Deburring Cutter
SKU: FTS-BC5420689
MPN: 20689
Severance BC5420699 5/8" Size-1/4" Shank-Single End Inside Deburring Cutter
SKU: FTS-BC5420699
MPN: 20699
Severance BC5420700 5/8" Size-3/8" Shank-Single End Inside Deburring Cutter
SKU: FTS-BC5420700
MPN: 20700
Weldon BB401CSET 9 pc. HSS Countersink Set
SKU: FTS-BB401CSET
MPN: 99034–94-W
Weldon BB402CSET 9 pc. HSS Countersink Set
SKU: FTS-BB402CSET
MPN: 99036–94-W
Weldon BB40DB26 5/16 to 25/32" Dia Range 0 FL Pilotless Countersink
SKU: FTS-BB40DB26
MPN: 98922–94-W