Buy Counterbores
Gomel Special-Purpose Tools and Industrial Equipment Plant offers you a wide range of counterbores: end counterbores, taper shank counterbores, parallel shank counterbores, solid multiflute counterbores and shell-type counterbores. For more detailed information about prices for counterbores design and production services, please call the phone numbers, specified in “Contact Details for Order Placement” section.
Counterbores

A counterbore is a multi-blade cutting device for processing of conical and cylindrical cavities to increase their diameter, and to increase their quality and finish accuracy. Operations, implemented with the use of a counterbore, are called counterboring. Counterbores may be made with oversize and with accuracy degree. Counterbores find application in such fields as plumbing, electrical engineering, manufacture of heating devices, aircraft industry, and car maintenance. One of the subtypes of counterbores is the reamer counterbore. Reamer counterbores are tools for final processing of cavities after drilling, boring or counterboring. High quality of processing is explained by a great number of cutting teeth of counterbores (4 – 14), which allows removal of a very thin layer of the material.

Counterbore type №1 №2
Counterbores (with a parallel shank) for light alloy parts machining, GOST 21579-76 diameter 8...9 2320-0085.........0087 2320-0086.........0088
End counterbores (with a parallel shank) for light alloy parts machining, GOST 21580-76 2323-0155.........0157 2323-0156.........0158
Counterbores (with a taper shank) for light alloy parts machining, GOST 21581-76, diameter 10...35 2320-0203.........0291 2320-0204.........0292
End counterbores (with a taper shank) for light alloy parts machining, GOST 21582-76, diameter 10...34 2323-0353.........0441 2323-0354.........0442
Counterbores (with a taper shank), with carbide blades for light alloy parts machining, GOST 21583-76, diameter 18...35 2320-0503.........0559 2320-0504.........0560
Shell-type counterbores, for light alloy parts machining, GOST 21584-76 diameter 36...80 (version 1) 2320-2121.........2159 (version 2) 2323-2201.........2239
Shell-type counterbores, with carbide blades, for light alloy parts machining, GOST 21585-76, diameter 36...80 2320-2301.........2339 2320-2302.........2340
Counterbores, with carbide blades for stainless and heat-resistant steels and alloys machining, GOST 21583-76 type 1 (taper shank) diameter 12...50 2320-2301.........2459 type 2 (shell-type) diameter 32...80 2320-2471.........2492
Solid multiflute counterbores (with a taper shank) GOST 12489-71 type 1 diameter 10...40 2320-0001.........0136 (through-holes) 2323-0001.........0136 (closed holes)
Solid multiflute counterbores (with a taper shank) GOST 12489-71 type 1 diameter 10...40 type 2 (shell-type) diameter 32...52 2320-2071.........2083
Counterbores with carbide blades GOST 3231-71 type 1 (taper shank) diameter 14...50 2320-0031.........2409 type 2 (shell-type) diameter 32...80 2320-2066.........2065
Shell-type counterbores, with inserted HSS blades, GOST 225-71 diameter 50...100 2321-2038...2060  
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