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.
ProCut BC50HC105790 7/8" Size-1/2" Shank-90° 6 Flute Chatterless Countersink
SKU: FTS-BC50HC105790
MPN: BC50HC105790
ProCut BC52RF560 5/16" Size-1/4" Shank-60° Single Flute Countersink
SKU: FTS-BC52RF560
MPN: BC52RF560
ProCut BC52RF660 3/8" Size-1/4" Shank-60° Single Flute Countersink
SKU: FTS-BC52RF660
MPN: BC52RF660
ProCut BC52RF682 3/8" Size-1/4" Shank-82° Single Flute Countersink
SKU: FTS-BC52RF682
MPN: BC52RF682
ProCut BC52RF690 3/8" Size-1/4" Shank-90° Single Flute Countersink
SKU: FTS-BC52RF690
MPN: BC52RF690
ProCut BC55R20060 8 Pc. HSS Chatterless Countersink Set
SKU: FTS-BC55R20060
MPN: BC55R20060
ProCut BC55R20082 8 Pc. HSS Chatterless Countersink Set
SKU: FTS-BC55R20082
MPN: BC55R20082
ProCut BC55R20090 8 Pc. HSS Chatterless Countersink Set
SKU: FTS-BC55R20090
MPN: BC55R20090
ProCut BC55R23082 5 pc. HSS Countersink Set
SKU: FTS-BC55R23082
MPN: BC55R23082
ProCut BC55R23090 5 pc. HSS Countersink Set
SKU: FTS-BC55R23090
MPN: BC55R23090
ProCut BC55R24060 9 pc. HSS Countersink Set
SKU: FTS-BC55R24060
MPN: BC55R24060
ProCut BC55R24082 9 pc. HSS Countersink Set
SKU: FTS-BC55R24082
MPN: BC55R24082
ProCut BC55R24090 9 pc. HSS Countersink Set
SKU: FTS-BC55R24090
MPN: BC55R24090
ProCut CD50SS1 NO. 6-1/27 Pc. HS Straight Shank Counterbore Set
SKU: FTS-CD50SS1
MPN: CD50SS1
ProCut CD60040 5/8X31/32 COBALT CAPSCREW CBORE
SKU: FTS-CD60040
MPN: CD60040
Quality Import CF55015603 5/32 Dia-HSS Pilot
SKU: FTS-CF55015603
MPN: 381–3009
Quality Import CF55015604 5/32 Dia-HSS Pilot
SKU: FTS-CF55015604
MPN: 381–3109
Quality Import CF55015605 5/32 Dia-HSS Pilot
SKU: FTS-CF55015605
MPN: 381–3203