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Counterbores, Interchangeable Pilot

Interchangeable Pilot Straight Shank Counterbores

Straight Shank Counterbores with hole for an Interchangeable Pilot.
High Speed Steel.
Please note that Pilots for these Counterbores are NOT included.

Most 64th sizes up to 1 inch are in stock
Price for 64th sizes is 30% over the next larger size - Call to order or request the counterbore in the 'comments' section of your checkout page.
Quantity Price Model Description Diameter Length Shank Diam. Hole Diam. Range of Pilot Sizes

$19.00 CBSS-3/16
3/16" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-5 3/16" 3" 15/64" 3/32" 1/8- 3/16"

$19.00 CBSS-7/32
7/32" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-10 7/32" 3" 15/64" 3/32 1/8- 7/32

$17.55 CBSS-1/4
1/4" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-15 1/4" 3-13/16" 15/64" 3/32 1/8- 3/16

$17.55 CBSS-9/32
9/32" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-20 9/32" 3-13/16" 17/64" 3/32 1/8- 7/32

$17.85 CBSS-5/16
5/16" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-25 5/16" 3-13/16" 19/64" 3/32 1/8- 1/4

$18.25 CBSS-11/32
11/32" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-30 11/32" 3-13/16" 5/16" 3/32 1/8- 9/32

$18.25 CBSS-3/8
3/8" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-35 3/8" 4-1/16" 5/16" 5/32 3/16- 5/16

$18.40 CBSS-13/32
13/32" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-40 13/32" 4-1/16" 3/8" 5/32 3/16- 11/32

$18.40 CBSS-7/16
7/16" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-45 7/16" 4-1/16" 3/8" 5/32 3/16- 3/8

$19.60 CBSS-15/32
15/32" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-50 15/32" 4-5/16" 7/16" 3/16 1/4- 13/32

$19.60 CBSS-1/2
1/2" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-55 1/2" 4-5/16" 7/16" 3/16 1/4- 7/16

$21.70 CBSS-17/32
17/32" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-60 17/32" 4-5/16" 1/2" 3/16 1/4- 15/32

$21.70 CBSS-9/16
9/16" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-65 9/16" 4-5/16" 1/2" 3/16 1/4- 1/2

$23.25 CBSS-19/32
19/32" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-70 19/32" 5-1/8" 1/2" 3/16 1/4- 17/32

$23.25 CBSS-5/8
5/8" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-75 5/8" 5-1/8" 1/2" 3/16 1/4- 9/16

$25.70 CBSS-21/32
21/32" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-80 21/32" 5-1/8" 1/2" 3/16 1/4- 19/32

$25.70 CBSS-11/16
11/16" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-85 11/16" 5-1/8" 1/2" 3/16 1/4- 5/8

$27.05 CBSS-23/32
23/32" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-90 23/32" 5-3/8" 1/2" 1/4 3/16- 21/32

$27.05 CBSS-3/4
3/4" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-95 3/4" 5-3/8" 1/2" 1/4 5/16- 11/16

$28.30 CBSS-25/32
25/32" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-100 25/32" 5-3/8" 5/8" 1/4 5/16- 23/32

$28.30 CBSS-13/16
13/16" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-105 13/16" 5-3/8" 5/8" 1/4 5/16- 3/4

$29.70 CBSS-27/32
27/32" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-107 27/32" 5-3/8" 3/4" 1/4 5/16- 13/16

$29.70 CBSS-7/8
7/8" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-110 7/8" 5-3/8" 3/4" 1/4 5/16-13/16

$31.10 CBSS-29/32
29/32" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-112 29/32" 6-1/8" 3/4" 1/4 5/16-27/32

$31.10 CBSS-15/16
15/16" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-115 15/16" 6-1/8" 3/4" 1/4 5/16-7/8

$33.20 CBSS-31/32
31/32" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-118 31/32" 6-3/8" 3/4" 5/16 3/8-29/32

$35.65 CBSS-1
1" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-120 1" 6-3/8" 3/4" 5/16 3/8-15/16

$45.75 CBSS-1-1/16
1-1/16" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-125 1-1/16" 6-3/8" 3/4" 5/16 3/8-1

$46.95 CBSS-1-1/8
1-1/8" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-130 1-1/8" 6-3/8" 1" 5/16 3/8-1 1/16

$49.50 CBSS-1-3/16
1-3/16" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-135 1-3/16" 6-3/8" 1 5/16 3/8-1 1/8

$57.90 CBSS-1-1/4
1-1/4" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-140 1-1/4" 6-5/8" 1" 3/8 7/16-1 3/16

$61.00 CBSS-1-5/16
1-5/16" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-150 1-5/16" 6 5/8" 1 3/8 7/16-1 1/4

$66.10 CBSS-1-3/8
1-3/8" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-155 1-3/8" 7-7/8" 1" 3/8 7/16-1 5/16

$74.00 CBSS-1-7/16
1-7/16" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-160 1-7/16" 7-7/8" 1-1/4" 3/8 7/16-1 3/8

$74.00 CBSS-1-1/2
1-1/2" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-165 1-1/2" 8-1/8" 1-1/4" 3/8 7/16-1 7/16

$93.00 CBSS-1-9/16
1-9/16" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-170 1-9/16" 8-1/8" 1-1/4" 7/16 1/2-1 1/2

$93.00 CBSS-1-5/8
1-5/8" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-175 1-5/8" 8-1/8" 1-1/4" 7/16 1/2-1 9/16

$100.20 CBSS-1-11/16
1-11/16" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-180 1-11/16" 8-1/8" 1-1/4" 7/16 1/2-1 5/8

$100.20 CBSS-1-3/4
1-3/4" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-185 1-3/4" 8-1/8" 1-1/4" 7/16 1/2-1 11/16

$110.00 CBSS-1-13/16
1-13/16" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-190 1-13/16" 8-1/8" 1-1/2" 7/16 1/2-1 3/4

$110.00 CBSS-1-7/8
1-7/8" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-195 1-7/8" 8-1/8" 1-1/2" 7/16 1/2-1 13/16

$124.60 CBSS-1-15/16
1-15/16" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-200 1-15/16" 8-3/8" 1-1/2" 7/16 1/2-1 7/8

$124.60 CBSS-2
2" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-205 2" 8-3/8" 1-1/2" 1/2 9/16-1 15/16

$193.00 CBSS-2-1/8
2-1/8" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-206 2-1/8" 9-7/8" 1-1/2" 1/2 9/16-2 1/16

$206.00 CBSS-2-1/4
2-1/4" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-207 2-1/4" 9-7/8" 1-1/2" 1/2 9/16-2 3/16

$221.00 CBSS-2-3/8
2-3/8" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-208 2-3/8" 9-7/8" 1-3/4" 1/2 9/16-2 5/16

$235.00 CBSS-2-1/2
2-1/2" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-209 2-1/2" 9-7/8" 1-3/4" 1/2 9/16-2 7/16

$287.00 CBSS-2-5/8
2-5/8" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-210 2-5/8" 9-7/8" 1-3/4" 1/2 9/16-2 9/16

$304.00 CBSS-2-3/4
2-3/4" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-211 2-3/4" 9-7/8" 1-3/4" 1/2 9/16-2 11/16

$317.00 CBSS-2-7/8
2-7/8" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-212 2-7/8" 9-7/8" 1-3/4" 1/2 9/16-2 13/16

$328.00 CBSS-3
3" Straight Shank Counterbore w/ Pilot Hole, HSS WT:1180-213 3" 9-7/8" 1-3/4" 1/2 9/16-2 15/16

Interchangeable Pilot Taper Shank Counterbores

Taper Shank Counterbore Tools with holes for Interchangeable Pilots.
High Speed Steel.
Please note that Pilots for these Counterbores are NOT included.
Quantity Price Model Description Diameter Length Overall Taper Shank Hole Diameter Range of Pilot Size

$18.40 CBTS-1/4
1/4" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-5 1/4" 3 13/16 1 3/32 1/8- 3/16

$18.40 CBTS-9/32
9/32" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-10 9/32" 3 13/16 1 3/32 1/8- 7/32

$18.90 CBTS-5/16
5/16" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-15 5/16" 3 13/16 1 3/32 1/8- 1/4

$18.90 CBTS-11/32
11/32" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-20 11/32" 3 13/16 1 3/32 1/8- 9/32

$18.90 CBTS-3/8
3/8" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-25 3/8" 4 1/16 1 5/32 3/16- 5/16

$20.00 CBTS-13/32
13/32" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-30 13/32" 4 1/16 1 5/32 3/16- 11/32

$20.00 CBTS-7/16
7/16" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-35 7/16" 4 1/16 1 5/32 3/16- 3/8

$21.00 CBTS-15/32
15/32" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-40 15/32" 4 5/16 1 3/16 1/4- 13/32

$25.10 CBTS-1/2
1/2" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-45 1/2" 4 5/16 1 3/16 1/4- 7/16

$22.40 CBTS-17/32
17/32" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-50 17/32" 4 5/16 1 3/16 1/4- 15/32

$28.00 CBTS-9/16
9/16" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-55 9/16" 4 5/16 1 3/16 1/4- 1/2

$25.20 CBTS-19/32
19/32" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-65 19/32" 5 1/8 1 3/16 1/4- 17/32

$25.20 CBTS-5/8
5/8" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-70 5/8" 5 1/8 2 3/16 1/4- 9/16

$29.20 CBTS-21/32
21/32" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-72 21/32" 5 1/8 2 3/16 1/4- 19/32

$29.20 CBTS-11/16
11/16" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-75 11/16" 5 1/8 2 3/16 1/4- 5/8

$29.20 CBTS-23/32
23/32" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-80 23/32" 5 3/8 2 1/4 5/16- 21/32

$34.80 CBTS-3/4
3/4" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-85 3/4" 5 3/8 2 1/4 5/16- 11/16

$30.70 CBTS-25/32
25/32" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-90 25/32" 5 3/8 2 1/4 5/16- 23/32

$30.70 CBTS-13/16
13/16" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-95 13/16" 5 3/8 2 1/4 5/16- 3/4

$32.20 CBTS-7/8
7/8" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-100 7/8" 5 3/8 2 1/4 5/16- 13/16

$40.10 CBTS-15/16
15/16" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-105 15/16" 6 1/8 3 1/4 5/16- 7/8

$40.10 CBTS-1
1" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-110 1" 6 3/8 3 5/16 3/8- 15/16

$55.70 CBTS-1-1/16
1-1/16" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-115 1-1/16" 6 3/8 3 5/16 3/8-1

$48.00 CBTS-1-1/8
1-1/8" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-120 1-1/8" 6 3/8 3 5/16 3/8-1 1/16

$60.00 CBTS-1-3/16
1-3/16" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-125 1-3/16" 6 3/8 3 5/16 3/8-1 1/8

$61.30 CBTS-1-1/4
1-1/4" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-130 1-1/4" 6 5/8 3 3/8 7/16-1 3/16

$62.50 CBTS-1-5/16
1-5/16" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-135 1-5/16" 6 5/8 3 3/8 7/16-1 1/4

$67.40 CBTS-1-3/8
1-3/8" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-140 1-3/8" 6 5/8 3 3/8 7/16-1 5/16

$72.80 CBTS-1-7/16
1-7/16" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-150 1-7/16" 7 7/8 4 3/8 7/16-1 3/8

$75.70 CBTS-1-1/2
1-1/2" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-155 1-1/2" 7 7/8 4 3/8 7/16-1 7/16

$98.90 CBTS-1-9/16
1-9/16" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-160 1-9/16" 8 1/8 4 7/16 1/2-1 1/2

$99.90 CBTS-1-5/8
1-5/8" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-157 1-5/8" 8 1/8 4 7/16 1/2-1 9/16

$108.00 CBTS-1-11/16
1-11/16" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-165 1-11/16" 8 1/8 4 7/16 1/2-1 5/8

$108.00 CBTS-1-3/4
1-3/4" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-170 1-3/4" 8 1/8 4 7/16 1/2-1 11/16

$118.40 CBTS-1-13/16
1-13/16" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-175 1-13/16" 8 1/8 4 7/16 1/2-1 3/4

$118.40 CBTS-1-7/8
1-7/8" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-180 1-7/8" 8 1/8 4 7/16 1/2-1 13/16

$133.80 CBTS-1-15/16
1-15/16" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-185 1-15/16" 8 1/8 4 7/16 1/2-1 7/8

$133.80 CBTS-2
2" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-190 2" 8 3/8 4 1/2 9/16-1 15/16

$169.10 CBTS-2-1/8
2-1/8" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-200 2-1/8" 9 7/8 5 1/2 9/16-2 1/16

$178.50 CBTS-2-1/4
2-1/4" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-210 2-1/4" 9 7/8 5 1/2 9/16-2 3/16

$194.00 CBTS-2-3/8
2-3/8" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-220 2-3/8" 9 7/8 5 1/2 9/16-2 5/16

$194.00 CBTS-2-1/2
2-1/2" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-230 2-1/2" 9 7/8 5 1/2 9/16-2 7/16

$208.00 CBTS-2-5/8
2-5/8" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-240 2-5/8" 9 7/8 5 1/2 9/16-2 9/16

$242.00 CBTS-2-3/4
2-3/4" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-245 2-3/4" 9 7/8 5 1/2 9/16-2 11/16

$266.00 CBTS-2-7/8
2-7/8" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-250 2-7/8" 9 7/8 5 1/2 9/16-2 13/16

$274.00 CBTS-3
3" Taper Shank Counterbore w/ Pilot Hole, HSS WT:1181-255 3" 9 7/8 5 1/2 9/16-2 15/16