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.
Fullerton Tool FT8536172 3730C 4.76X2.38X50.8MM 4FL SE CHAM
SKU: FTS-FT8536172
MPN: 36172
Fullerton Tool FT8536173 3730SD C90DEG 3/162STFL SE CHAMILL
SKU: FTS-FT8536173
MPN: 36173
Fullerton Tool FT8536174 3730C 4.76X2.38X50.8MM 2FL SE CHAM
SKU: FTS-FT8536174
MPN: 36174
Fullerton Tool FT8536175 3730C 3/4X3/8X44FL SE CHAM MILL
SKU: FTS-FT8536175
MPN: 36175
Fullerton Tool FT8536176 3730SD TIALN C90DEGREE .7500 ST SE
SKU: FTS-FT8536176
MPN: 36176
Fullerton Tool FT8536177 3730 C90DEG 3/42FL SE CHAMILL
SKU: FTS-FT8536177
MPN: 36177
Fullerton Tool FT8536178 3730C 3/4X3/8X42FL SE CHAM MILL
SKU: FTS-FT8536178
MPN: 36178
Fullerton Tool FT8736159 1/8 DIA CARB 90 DEG CHAMFER MILL
SKU: FTS-FT8736159
MPN: 36159
Keo AV4240348 3/4 Size-1/2 Shank-82° 4 Flute Machine Countersink
SKU: FTS-AV4240348
MPN: 919-000-009
Keo AV4240588 5/8 Size-1/2 Shank-82° 4 Flute Machine Countersink
SKU: FTS-AV4240588
MPN: 919-000-015
Keo AV4253380 3/8 Size-1/4 Shank-100° Single Flute Countersink
SKU: FTS-AV4253380
MPN: 919-000-161
Keo AV4253386 3/8 Size-1/4 Shank-60° Single Flute Countersink
SKU: FTS-AV4253386
MPN: 919-000-167
Keo AV4253388 3/8 Size-1/4 Shank-82° Single Flute Countersink
SKU: FTS-AV4253388
MPN: 919-000-169
Keo AV4253389 3/8 Size-1/4 Shank-90° Single Flute Countersink
SKU: FTS-AV4253389
MPN: 919-000-171
Keo AV4253508 4 Pc. M35 M42 Countersink & Deburring Tool Set
SKU: FTS-AV4253508
MPN: 919-000-199
Keo AV4253509 5 Pc. M35 M42 Countersink & Deburring Tool Set
SKU: FTS-AV4253509
MPN: 919-000-200
Keo AV4253510 3/32 to 9/32 Dia Range 0 FL Pilotless Countersink
SKU: FTS-AV4253510
MPN: 919-000-202
Keo AV4253511 9/64 to 11/32 Dia Range 0 FL Pilotless Countersink
SKU: FTS-AV4253511
MPN: 919-000-204
Keo AV4253512 5/32 to 29/64 Dia Range 0 FL Pilotless Countersink
SKU: FTS-AV4253512
MPN: 919-000-206