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Counterbore Sets

Counterbore sets are specialized cutting tool sets designed for creating precise, flat-bottomed holes with a larger diameter than the pilot hole, accommodating fasteners with flush or recessed heads. These sets include multiple counterbore tools in various sizes and configurations, ensuring compatibility with a wide range of fastener sizes and applications. Counterbore sets are commonly used in industries such as automotive, aerospace, and manufacturing, where precise hole making is essential for component assembly and structural integrity.
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#6114475
C91695
Cleveland C91695 183-CSS-6 #6 cap screw counterbore with 0.135" pilot diameter, 0.230" bore diameter, and 7/32" shank diameter. High-Speed Steel (HSS) construction with Bright (Uncoated) finish, 3-flute spiral design, and right-hand cutting direction. Continuous type, 1/4" pilot length, 1.19" shank length, 3" overall length. Series 183 for precision counterboring in cap screw applications.
Brand Cleveland
Model C91695
$122.25 Each
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#6114476
C91696
Cleveland C91696 183-CSS-7 #6 cap screw counterbore with 0.150" pilot diameter, 0.242" body diameter, and 7/32" depth. High-Speed Steel (HSS) construction with Bright finish, 3 spiral flutes, and right-hand cutting direction. Continuous type, 1/4" pilot length, 1.19" shank length, 0.2188" shank diameter, 3" overall length. Series 183.
Brand Cleveland
Model C91696
$130.39 Each
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#6114477
C91697
Cleveland C91697 183-CSS-8 continuous-pilot counterbore for #8 cap screws, 0.161" pilot diameter, 0.274" body diameter, 1/4" shank diameter, 3-inch overall length. High-Speed Steel (HSS) with Bright (uncoated) finish, 3-flute spiral flute design, right-hand cutting. Series 183 tool for counterboring cap screw holes in general-purpose applications.
Brand Cleveland
Model C91697
$140.29 Each
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#6114478
C91698
Cleveland C91698 183-CSS-9 #8 cap screw counterbore with 0.178" pilot diameter, 0.286" bore diameter, and 1/4" shank diameter. High-Speed Steel (HSS) construction with Bright (Uncoated) finish. Spiral flute type, 3 flutes, right-hand cutting direction. 1/4" pilot length, 1.19" shank length, 3" overall length. Series 183 continuous style for cap screw counterboring applications.
Brand Cleveland
Model C91698
$143.19 Each
Free Shipping orders over $100
#6114479
C91699
Cleveland C91699 183-CSS-10 #10 cap screw counterbore with 0.187" pilot diameter, 0.316" bore diameter, and 5/16" shank diameter. High-Speed Steel (HSS) construction with Bright (Uncoated) finish, 3-flute spiral design, and right-hand cutting direction. Continuous type, 1/4" pilot length, 1.19" shank length, and 3-1/2" overall length. Series 183 for cap screw counterboring applications.
Brand Cleveland
Model C91699
$141.13 Each
Free Shipping orders over $100
#6114480
C91700
Cleveland C91700 183-CSS-11 #10 cap screw counterbore with 0.204" pilot diameter, 0.328" bore diameter, and 5/16" shank diameter. High-Speed Steel (HSS) construction with Bright (Uncoated) finish and 3 spiral flutes for right-hand cutting. Continuous style, 1/4" pilot length, 1-5/8" shank length, and 3-1/2" overall length. Series 183.
Brand Cleveland
Model C91700
$147.79 Each
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#6114481
C91701
Cleveland C91701 183-CSS-12 #12 cap screw counterbore with 0.213" pilot diameter, 0.348" bore diameter, and 11/32" body diameter. High-Speed Steel (HSS) construction with Bright (uncoated) finish, 3-flute spiral flute design for efficient chip evacuation. 1/4" pilot length, 1-5/8" shank length, 3-1/2" overall length, and 0.3438" shank diameter. Right-hand cutting direction. Series 183 continuous counterbore for cap screw applications.
Brand Cleveland
Model C91701
$150.61 Each
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#6114482
C91703
Cleveland C91703 183-CSS-16 1/4" pilot diameter x 3/8" shank diameter x 3/8" bore diameter HSS 3-flute spiral cap screw counterbore with bright finish, right-hand cutting direction, 5-3/4" overall length, 0.31" pilot length, and 2.562" shank length. Designed for #12 cap screws, series 183 continuous style for precision counterboring in metalworking applications.
Brand Cleveland
Model C91703
$150.61 Each
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#6114483
C91709
Cleveland C91709 183 series continuous-pilot counterbore, 21/64" pilot diameter x 31/64" body diameter x 7/16" shank diameter, High-Speed Steel (HSS) with Bright uncoated finish. 3-flute spiral flute design, right-hand cutting direction, 6" overall length, 2.562" shank length, 3/8" pilot length. For 5/16" cap screws, 0.484" bore diameter.
Brand Cleveland
Model C91709
$161.51 Each
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#6114484
C91710
Cleveland C91710 183 continuous spiral cutting tool, 11/32" x 15/32" x 7/16" size, High-Speed Steel (HSS) with Bright (Uncoated) finish. 3-flute right-hand design with 7/16" shank diameter, 6" overall length, and 0.469" bore diameter. Suitable for cap screw applications with 5/16" screw size and 3/8" pilot length.
Brand Cleveland
Model C91710
$161.51 Each
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#6114485
C91711
Cleveland C91711 183 series continuous-pilot counterbore, 11/32" pilot diameter x 1/2" bore diameter x 7/16" shank diameter, 3-flute spiral flute design, High-Speed Steel (HSS) with Bright uncoated finish. Right-hand cutting, 6" overall length, 3/8" pilot length, 2.562" shank length. For 5/16" cap screws.
Brand Cleveland
Model C91711
$161.51 Each
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#6114486
C91712
Cleveland C91712 183-CSS-24 3/8" x 9/16" x 1/2" HSS bright spiral 3-flute continuous cap screw counterbore with 3/8" pilot diameter, 0.563" bore diameter, 1/2" shank diameter, 7/16" pilot length, 2.562" shank length, and 6-1/2" overall length. Right-hand cutting direction. Series 183.
Brand Cleveland
Model C91712
$170.45 Each
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#6114487
C91713
Cleveland C91713 183-CSS-25 25/64" x 37/64" x 1/2" HSS 3-flute spiral counterbore with 1/2" straight shank and bright finish. Pilot diameter 0.391", pilot length 7/16", bore diameter 0.578", overall length 6-1/2". Designed for 3/8" cap screws, right-hand cutting, continuous style 183. Suitable for general-purpose counterboring in steel and cast iron.
Brand Cleveland
Model C91713
$173.15 Each
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#6114488
C91714
Cleveland C91714 183 continuous cutting tool with 13/32" x 19/32" x 1/2" size, High-Speed Steel (HSS) material, and Bright (Uncoated) finish. Features 3 spiral flutes, right-hand cutting direction, 1/2" shank diameter, 6-1/2" overall length, and 0.594" bore diameter. Designed for 3/8" cap screw with 7/16" pilot length and 0.406" pilot diameter.
Brand Cleveland
Model C91714
$173.15 Each
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#6114489
C91715
Cleveland C91715 183-CSS-28 7/16" x 5/8" x 1/2" HSS bright spiral cap screw counterbore with 3 flutes and right-hand cutting direction. Pilot diameter 0.438", bore diameter 5/8", shank diameter 1/2", pilot length 1/2", shank length 2.562", overall length 7". Series 183 continuous style for cap screw counterboring applications.
Brand Cleveland
Model C91715
$181.19 Each
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#6114490
C91717
Cleveland C91717 183-CSS-29 HSS bright finish spiral flute counterbore, 29/64" pilot diameter x 41/64" body diameter x 1/2" shank diameter, 3-flute, right hand cutting. Designed for cap screw counterboring with 7/16" screw size and 1/2" pilot length. 7" overall length with 2.562" shank length. Series 183 continuous style for general-purpose use.
Brand Cleveland
Model C91717
$201.61 Each
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#6114491
C91719
Cleveland C91719 183-CSS-30 15/32" x 21/32" x 1/2" HSS 3-flute spiral cap screw counterbore with bright finish. Pilot diameter 0.469", bore diameter 0.656", shank diameter 1/2", overall length 7". Designed for 7/16" cap screws with 1/2" pilot length. Right-hand cutting, continuous style 183 for general-purpose counterboring in steel and cast iron.
Brand Cleveland
Model C91719
$201.61 Each
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#6114492
C91720
Cleveland C91720 183 series continuous counterbore, 15/32" pilot diameter x 11/16" body diameter x 1/2" shank diameter, High-Speed Steel (HSS) with Bright finish. 3-flute spiral flute design, right-hand cutting, 7" overall length, 2.562" shank length, 1/2" pilot length. For 7/16" cap screws.
Brand Cleveland
Model C91720
$201.61 Each
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#6114493
C91721
Cleveland C91721 183-CSS-32 1/2" x 3/4" x 1/2" HSS 3-flute spiral cap screw counterbore with bright finish. Pilot diameter 1/2", bore diameter 3/4", shank diameter 1/2", pilot length 9/16", shank length 2.562", overall length 7-1/4". Right-hand cutting, continuous type, series 183. Designed for counterboring cap screw holes in steel and other materials.
Brand Cleveland
Model C91721
$201.61 Each
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#6114494
C91722
Cleveland C91722 183-CSS-33 33/64" x 49/64" x 1/2" HSS bright spiral flute counterbore with 3 flutes and right-hand cutting direction. Designed for cap screw clearance, featuring a 1/2" pilot diameter, 9/16" pilot length, and 7-1/4" overall length. Bright finish for general-purpose use on ferrous and non-ferrous materials.
Brand Cleveland
Model C91722
$201.61 Each
Free Shipping orders over $100
#6114495
C91723
Cleveland C91723 183-CSS-34 17/32" x 25/32" x 1/2" HSS 3-flute spiral cap screw counterbore with bright finish, 0.531" pilot diameter, 0.781" bore diameter, 1/2" shank diameter, 7-1/4" overall length, and 9/16" pilot length. Series 183 continuous right-hand cutting tool for 1/2" cap screws.
Brand Cleveland
Model C91723
$201.61 Each
Free Shipping orders over $100
#6114496
C91724
Cleveland C91724 183 9/16" x 13/16" x 3/4" HSS 3-flute spiral cap screw counterbore with bright finish. Pilot diameter 0.563", bore diameter 0.813", shank diameter 3/4", pilot length 5/8", shank length 3-1/8", overall length 7-1/2". Right-hand cutting direction. Series 183 continuous style for cap screw counterboring applications.
Brand Cleveland
Model C91724
$221.82 Each
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#6114497
C91726
Cleveland C91726 183-CSS-40 5/8" pilot diameter, 7/8" bore diameter, 3/4" shank diameter HSS spiral flute counterbore with 3 flutes and bright finish. Designed for cap screw counterboring with 0.69" pilot length, 3-1/8" shank length, and 8-1/4" overall length. Right-hand cutting direction for continuous use in general-purpose applications.
Brand Cleveland
Model C91726
$239.05 Each
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#6114498
C91728
Cleveland C91728 183 series 21/32" x 29/32" x 3/4" HSS 3-flute spiral counterbore with bright finish. Designed for 5/8" cap screws, featuring a 0.656" pilot diameter, 0.69" pilot length, 3/4" shank diameter, 3-1/8" shank length, and 8-1/4" overall length. Right-hand cutting direction for continuous use in general-purpose counterboring applications.
Brand Cleveland
Model C91728
$252.50 Each
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#6114499
C91729
Cleveland C91729 183 series continuous-pilot counterbore, 21/32" pilot diameter x 31/32" body diameter x 3/4" shank diameter, High-Speed Steel (HSS) with Bright finish. Spiral flute design, 3 flutes, right-hand cutting direction. Pilot length 0.69", shank length 3-1/8", overall length 8-1/4", bore diameter 0.969". For 5/8" cap screws.
Brand Cleveland
Model C91729
$252.50 Each
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#6114500
C91734
Cleveland C91734 183-CSS-50 25/32" pilot diameter x 1-1/32" body diameter x 1" shank diameter HSS 3-flute spiral counterbore with bright finish, right-hand cutting direction, for 3/4" cap screws. Pilot length 3/4", shank length 3-7/8", overall length 8.813", bore diameter 1.031". Series 183 continuous style.
Brand Cleveland
Model C91734
$329.60 Each
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#6114501
C91735
Cleveland C91735 183 continuous cutting tool, 25/32" x 1-5/32" x 1" size, High-Speed Steel (HSS) with Bright uncoated finish. Spiral flute type, 3 flutes, right hand cutting direction. Pilot diameter 0.781", bore diameter 1.156", shank diameter 1", overall length 8.813". Designed for cap screw applications with 3/4" screw size and 3/4" pilot length.
Brand Cleveland
Model C91735
$331.42 Each
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#6114502
C91737
Cleveland C91737 183 series continuous-pilot counterbore, 13/16" pilot diameter x 1-3/16" body diameter x 1" shank diameter, 3-flute spiral flute design, High-Speed Steel with Bright finish, right-hand cutting. Designed for cap screw counterboring with 3/4" pilot length and 3-7/8" shank length, 8.813" overall length.
Brand Cleveland
Model C91737
$341.86 Each
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#6114503
C91749
Cleveland C91749 183 series continuous-pilot counterbore, 1-1/16" pilot diameter x 1-9/16" body diameter x 1" shank diameter, 3-flute spiral flute, High-Speed Steel (HSS) with Bright finish. Right-hand cutting, 8.813" overall length, 7/8" pilot length, 3-7/8" shank length, 1.563" bore diameter. Designed for cap screw counterboring applications.
Brand Cleveland
Model C91749
$466.89 Each
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#6114504
C91750
Cleveland C91750 183-CSS-1 9-piece high-speed steel countersink set with straight shank, 3-flute spiral flute design, and right-hand cut. Bright uncoated finish for general-purpose countersinking, chamfering, and deburring in a range of materials. Continuous style series 183.
Brand Cleveland
Model C91750
$1,177.47 Each
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#6114505
C91770
Cleveland C91770 183-CSS-3 8-piece continuous cutting tool set, High-Speed Steel (HSS) with Bright (Uncoated) finish. Straight shank, 3-flute, spiral flute design with right hand cut. Series 183. Suitable for general-purpose machining applications.
Brand Cleveland
Model C91770
$1,177.47 Each
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#6114506
C91830
Cleveland C91830 183-CSM-6 HSS spiral flute counterbore, 6.8mm pilot diameter x 11mm bore diameter x 7/16" shank diameter, 3-flute, bright finish. Designed for cap screw counterboring with 6mm screw size and 3/8" pilot length. Right hand cutting direction with 152.4mm overall length and 65.07mm shank length.
Brand Cleveland
Model C91830
$181.71 Each
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#6114507
C91832
Cleveland C91832 183-CSM-10 11mm x 18mm x 1/2" HSS spiral flute counterbore with 3 flutes and Bright finish. Pilot diameter 0.433", pilot length 9/16", shank diameter 12.7 mm, overall length 177.8 mm. Right-hand cutting, continuous type, for cap screw size 10 mm. Series 183.
Brand Cleveland
Model C91832
$229.65 Each
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#6114508
C91833
Cleveland C91833 183-CSM-12 HSS spiral flute counterbore, 13.5mm pilot diameter x 20mm body diameter x 1/2" shank, 3-flute, bright finish. Series 183 continuous counterbore with right hand cutting direction, 177.8mm overall length, 65.07mm shank length, 5/8" pilot length. Designed for cap screw counterboring in steel and general-purpose applications.
Brand Cleveland
Model C91833
$257.79 Each
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#6114509
C91834
Cleveland C91834 183-CSM-16 HSS counterbore with 17.5mm pilot diameter, 26mm body diameter, and 3/4" pilot length. Features 3 spiral flutes, bright uncoated finish, and right-hand cutting direction. Designed for cap screw clearance holes with 16mm screw size. Overall length 209.55mm, shank diameter 19.05mm, shank length 79.38mm. Series 183 continuous style for general-purpose counterboring in steel and cast iron.
Brand Cleveland
Model C91834
$301.96 Each
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#6114510
C91835
Cleveland C91835 183-CSM-20 HSS spiral flute counterbore, 22mm pilot diameter x 33mm body diameter x 1" pilot length, 3-flute, bright finish. Designed for cap screw counterboring with 20mm screw size. Right hand cutting, continuous style, 223.85mm overall length, 25.4mm shank diameter.
Brand Cleveland
Model C91835
$371.81 Each
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#6114511
C92704
Cleveland C92704 183-CSS-17 continuous counterbore with 17/64" pilot diameter, 25/64" body diameter, and 3/8" shank diameter. High-Speed Steel (HSS) with Bright (Uncoated) finish, 3 spiral flutes, right hand cutting direction. Designed for 1/4" cap screws with 5/16" pilot length and 2.562" shank length. Overall length 5-3/4", bore diameter 0.391". Series 183.
Brand Cleveland
Model C92704
$148.06 Each
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#6114512
C92705
Cleveland C92705 183 continuous cutting tool, 9/32" x 13/32" x 3/8" size, High-Speed Steel (HSS) with Bright (Uncoated) finish. Features 3 spiral flutes, right-hand cutting direction, 3/8" shank diameter, 5-3/4" overall length, and 2.562" shank length. Designed for cap screw applications with 4" screw size, 0.281" pilot diameter, 0.406" bore diameter, and 5/16" pilot length.
Brand Cleveland
Model C92705
$148.06 Each
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#6114513
C92706
Cleveland C92706 183-CSS-20 HSS bright spiral 3-flute continuous cap screw counterbore, 5/16" screw size, 7/16" shank diameter, 0.313" pilot diameter, 0.438" bore diameter, 3/8" pilot length, 2.562" shank length, 6" overall length. Right-hand cutting direction with bright uncoated finish. Series 183 for cap screw counterboring applications.
Brand Cleveland
Model C92706
$153.21 Each
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#6114514
C92707
Cleveland C92707 183 series continuous-pilot counterbore, 5/16" screw size for cap screws, 3/8" pilot length, 0.313" pilot diameter, 0.469" bore diameter, 7/16" shank diameter, 2.562" shank length, 6" overall length. High-Speed Steel (HSS) with Bright uncoated finish, 3 right-hand spiral flutes for efficient chip evacuation in general-purpose counterboring.
Brand Cleveland
Model C92707
$162.83 Each
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#6114515
C92708
Cleveland C92708 183-CSS-21 continuous spiral flute cutting tool, 21/64" x 29/64" x 7/16" tool size, High-Speed Steel (HSS) with Bright (Uncoated) finish. 3-flute right hand design with 7/16" shank diameter, 0.453" bore diameter, and 6" overall length. Pilot diameter 0.328", pilot length 3/8", shank length 2.562". For 5/16" cap screws. Series 183.
Brand Cleveland
Model C92708
$162.83 Each
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