IS Counterbores
Freer Tool & Supply’s IS counterbores collection is designed for clean, accurate fastener seating in machining, fabrication, and assembly work. Counterbores create flat-bottom recesses that help bolts and socket head cap screws sit properly, improving fit, alignment, and overall assembly quality—especially when you’re working to print and holding tight tolerances.
Quality Import CF55103112 1-1/32 Dia-HSS Pilot
SKU: FTS-CF55103112
MPN: 381-3675
Quality Import CF55106212 1-1/16 Dia-HSS Pilot
SKU: FTS-CF55106212
MPN: 381–3677
Quality Import CF55106214 1-1/16 Dia-HSS Pilot
SKU: FTS-CF55106214
MPN: 381–3749
Quality Import CF55106216 1-1/16 Dia-HSS Pilot
SKU: FTS-CF55106216
MPN: 381–3853
Quality Import CF55112510 1-1/8 Dia-HSS Pilot
SKU: FTS-CF55112510
MPN: 381-3589
Quality Import CF55115610 1-5/32 Dia-HSS Pilot
SKU: FTS-CF55115610
MPN: 381-3591
Quality Import CF55118712 1-3/16 Dia-HSS Pilot
SKU: FTS-CF55118712
MPN: 381–3685
Quality Import CF55118716 1-3/16 Dia-HSS Pilot
SKU: FTS-CF55118716
MPN: 381–3861
Quality Import CF55125014 1-1/4 Dia-HSS Pilot
SKU: FTS-CF55125014
MPN: 381-3761
Quality Import CF55137514 1-3/8 Dia-HSS Pilot
SKU: FTS-CF55137514
MPN: 381-3769
Quality Import CF55143712 1-7/16 Dia-HSS Pilot
SKU: FTS-CF55143712
MPN: 381-3701
Quality Import CF55150014 1-1/2 Dia-HSS Pilot
SKU: FTS-CF55150014
MPN: 381-3777
Rock River Tool DE60016 1/4 Screw Size-CBD Tip-Straight Shank Interchangeable Pilot Counterbore
SKU: FTS-DE60016
MPN: 251408
Rock River Tool DE60020 5/16 Screw Size-CBD Tip-Straight Shank Interchangeable Pilot Counterbore
SKU: FTS-DE60020
MPN: 251410
Rock River Tool DE60024 3/8 Screw Size-CBD Tip-Straight Shank Interchangeable Pilot Counterbore
SKU: FTS-DE60024
MPN: 251412
Rock River Tool DE60028 7/16 Screw Size-CBD Tip-Straight Shank Interchangeable Pilot Counterbore
SKU: FTS-DE60028
MPN: 251414
Rock River Tool DE60032 1/2 Screw Size-CBD Tip-Straight Shank Interchangeable Pilot Counterbore
SKU: FTS-DE60032
MPN: 251416
Rock River Tool DE60036 9/16 Screw Size-CBD Tip-Straight Shank Interchangeable Pilot Counterbore
SKU: FTS-DE60036
MPN: 251418
Rock River Tool DE60040 5/8 Screw Size-CBD Tip-Straight Shank Interchangeable Pilot Counterbore
SKU: FTS-DE60040
MPN: 251420
Rock River Tool DE60044 11/16 Screw Size-CBD Tip-Straight Shank Interchangeable Pilot Counterbore
SKU: FTS-DE60044
MPN: 251422
Rock River Tool DE60048 3/4 Screw Size-CBD Tip-Straight Shank Interchangeable Pilot Counterbore
SKU: FTS-DE60048
MPN: 251424
Rock River Tool DE60052 13/16 Screw Size-CBD Tip-Straight Shank Interchangeable Pilot Counterbore
SKU: FTS-DE60052
MPN: 251426