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.
Alvord Polk BL5403000 #4 Screw Size-3-7/8 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403000
MPN: 3000
Alvord Polk BL5403001 #4 Screw Size-3-7/8 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403001
MPN: 3001
Alvord Polk BL5403002 #4 Screw Size-3-7/8 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403002
MPN: 3002
Alvord Polk BL5403003 #5 Screw Size-4-1/8 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403003
MPN: 3003
Alvord Polk BL5403004 #5 Screw Size-4-1/8 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403004
MPN: 3004
Alvord Polk BL5403005 #5 Screw Size-4-1/8 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403005
MPN: 3005
Alvord Polk BL5403006 #6 Screw Size-4-5/8 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403006
MPN: 3006
Alvord Polk BL5403007 #6 Screw Size-4-5/8 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403007
MPN: 3007
Alvord Polk BL5403008 #6 Screw Size-4-5/8 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403008
MPN: 3008
Alvord Polk BL5403009 #8 Screw Size-5 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403009
MPN: 3009
Alvord Polk BL5403010 #8 Screw Size-5 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403010
MPN: 3010
Alvord Polk BL5403011 #8 Screw Size-5 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403011
MPN: 3011
Alvord Polk BL5403018 5/16 Screw Size-6-1/8 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403018
MPN: 3018
Alvord Polk BL5403019 5/16 Screw Size-6-1/8 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403019
MPN: 3019
Alvord Polk BL5403020 5/16 Screw Size-6-1/8 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403020
MPN: 3020
Alvord Polk BL5403021 3/8 Screw Size-6-1/2 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403021
MPN: 3021
Alvord Polk BL5403022 3/8 Screw Size-6-1/2 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403022
MPN: 3022
Alvord Polk BL5403023 3/8 Screw Size-6-1/2 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403023
MPN: 3023
Alvord Polk BL5403024 7/16 Screw Size-7 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403024
MPN: 3024
Alvord Polk BL5403025 7/16 Screw Size-7 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403025
MPN: 3025
Alvord Polk BL5403026 7/16 Screw Size-7 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403026
MPN: 3026
Alvord Polk BL5403030 5/8 Screw Size-7-5/8 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403030
MPN: 3030
Alvord Polk BL5403031 5/8 Screw Size-7-5/8 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403031
MPN: 3031
Alvord Polk BL5403032 5/8 Screw Size-7-5/8 OAL-HSS-Straight Shank Capscrew Counterbore
SKU: FTS-BL5403032
MPN: 3032