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Inch Size 3 Flute Capscrew Counterbores

Inch Size 3 Flute Capscrew Counterbores

High speed steel, for socket cap screws.
3 Flute cap screw counterbores have larger pilots than 2 Flute solid counterbores.
These counterbore screws have straight shanks.
Quantity Price Model Description Screw Size Pilot Diam. Cutter Diam. Shank Diam.

$9.10 CBCS-5
#5 Capscrew Counterbore, 3 Flute, HSS, 1182-0001 #5 .141" .221" 3/16"

$9.10 CBCS-6
#6 Capscrew Counterbore, 3 Flute, HSS, 1182-0002 #6 0.15" 0.242 7/32"

$9.10 CBCS-8
#8 Capscrew Counterbore, 3 Flute, HSS, 1182-0005 #8 11/64" 19/64 1/4"

$10.30 CBCS-10
#10 Capscrew Counterbore, 3 Flute, HSS, 1182-0010 #10 13/64" 21/64 5/16"

$12.05 CBCS-1/4
1/4" Capscrew Counterbore, 3 Flute, HSS, 1182-0015 1/4" 9/32" 13/32 3/8"

$14.15 CBCS-5/16
5/16" Capscrew Counterbore, 3 Flute, HSS, 1182-0020 5/16" 11/32" 1/2 7/16"

$15.60 CBCS-3/8
3/8" Capscrew Counterbore, 3 Flute, HSS, 1182-0025 3/8" 13/32" 19/32 1/2"

$18.65 CBCS-7/16
7/16" Capscrew Counterbore, 3 Flute, HSS, 1182-0030 7/16" 15/32" 11/16 1/2"

$22.40 CBCS-1/2
1/2" Capscrew Counterbore, 3 Flute, HSS, 1182-0032 1/2" 17/32" 25/32 1/2"

$18.40 CBCS-1/2A
1/2" Capscrew Counterbore, 3 Flute, HSS (3/4" Shank), 1182-0040 1/2" 17/32" 25/32 3/4"

$29.90 CBCS-5/8
5/8" Capscrew Counterbore, 3 Flute, HSS, 1182-0050 5/8" 21/32" 31/32 3/4"

$41.60 CBCS-3/4
3/4" Capscrew Counterbore, 3 Flute, HSS, 1182-0060 3/4" 13/16" 1 3/16 1"