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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, 1180-0005 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, 1180-0010 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, 1180-0015 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, 1180-0020 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, 1180-0025 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, 1180-0030 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, 1180-0035 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, 1180-0040 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, 1180-0045 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, 1180-0050 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, 1180-0055 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, 1180-0060 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, 1180-0065 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, 1180-0070 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, 1180-0075 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, 1180-0080 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, 1180-0085 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, 1180-0090 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, 1180-0095 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, 1180-0100 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, 1180-0105 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, 1180-0107 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, 1180-0110 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, 1180-0112 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, 1180-0115 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, 1180-0118 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, 1180-0120 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, 1180-0125 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, 1180-0130 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, 1180-0135 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, 1180-0140 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, 1180-0150 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, 1180-0155 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, 1180-0160 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, 1180-0165 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, 1180-0170 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, 1180-0175 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, 1180-0180 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, 1180-0185 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, 1180-0190 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, 1180-0195 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, 1180-0200 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, 1180-0205 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, 1180-0206 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, 1180-0207 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, 1180-0208 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, 1180-0209 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, 1180-0210 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, 1180-0211 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, 1180-0212 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, 1180-0213 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, 1181-0005 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, 1181-0010 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, 1181-0015 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, 1181-0020 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, 1181-0025 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, 1181-0030 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, 1181-0035 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, 1181-0040 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, 1181-0045 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, 1181-0050 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, 1181-0055 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, 1181-0065 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, 1181-0070 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, 1181-0072 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, 1181-0075 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, 1181-0080 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, 1181-0085 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, 1181-0090 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, 1181-0095 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, 1181-0100 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, 1181-0105 15/16" 6 1/8 3 1/4 5/16- 7/8

$40.10 CBTS-1
1" Taper Shank Counterbore w/ Pilot Hole, HSS, 1181-0110 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, 1181-0115 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, 1181-0120 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, 1181-0125 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, 1181-0130 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, 1181-0135 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, 1181-0140 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, 1181-0150 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, 1181-0155 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, 1181-0160 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, 1181-0157 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, 1181-0165 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, 1181-0170 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, 1181-0175 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, 1181-0180 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, 1181-0185 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, 1181-0190 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, 1181-0200 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, 1181-0210 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, 1181-0220 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, 1181-0230 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, 1181-0240 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, 1181-0245 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, 1181-0250 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, 1181-0255 3" 9 7/8 5 1/2 9/16-2 15/16