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Counterbores Specifications

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Counterbore Specifications




   Size Units:       
   Your choices are...
 
      
 
   English / Fractional
 
     Counterbore is designed with base units of inches or fractions of an inch, or to accommodate standard English screw sizes.
 
   Metric
 
     Counterbore is designed with metric base units such as millimeters or centimeters.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Counterbore Diameter:
 
     Full outside counterbore cutting diameter.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Pilot / Pilot Hole Diameter:
 
     Diameter of the integral pilot (if present), or of the hole for interchangeable pilots.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Shank Diameter:
 
     Diameter, hex size, or nominal taper size of mounting arbor or shank.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Number of Flutes:
 
     Number of cutting flutes or edges on the counterbore.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
Configuration




   Specialty Type       
   Your choices are...
 
      
 
   Aircraft Counterbore
 
     Aircraft counterbores typically have a standard chucking shank size such as 1/4", 1/2", etc., and are often configured for nonferrous materials such as aluminum that are frequently found in aircraft.


 
   Cap Screw Counterbore
 
     Counterbore specifically designed to provide a recess or spot face for the head of a standard socket head cap screw.


 
   Fillister Head Screw Counterbore
 
     Counterbore specifically designed to provide a recess or spot face for the head of a fillister head screw.


 
   Blade Counterbore
 
     Term for a counterbore that uses straight blade-like protrusions from the side of the body to cut the counterbore.


 
   Back Counterbore
 
     Counterbore designed so that the body extends through the body of the material, so that the counterbored surface is on the opposite side of the counterbore chuck or holder.


 
   Type B Counterbore
 
      
 
   Type CB Counterbore
 
      
 
   Type CR Counterbore
 
      
 
   Type M Counterbore
 
      
 
   Type MS Counterbore
 
      
 
   Type R Counterbore
 
      
 
   Type X Counterbore
 
      
 
   Other
 
     Other unlisted, specialized, or proprietary counterbore type.


 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Pilot Configuration       
   Your choices are...
 
      
 
   None
 
     Counterbore face is flat with no pilot or pilot hole.


 
   Solid Pilot
 
     Pilot is integral to counterbore in a solid construction.


 
   Interchangeable Pilots
 
     Counterbore end features a hole into which pilots of different diameter are mounted.  The pilot's mounting shaft is inserted into the hole and secured with a set screw or other device.


 
   Drill Pilot
 
     Counterbore is designed so that a drill mounts into the pilot hole, and is secured with a set screw or other device.  Pilot drill can be replaced when worn.


 
   Other
 
     Other unlisted or specialized pilot configuration.


 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Shank Type       
   Your choices are...
 
      
 
   Straight Shank
 
     Counterbore shank is the same diameter as the cutting edges.


 
   Pin Drive
 
     Shank contains a groove for engagement of a pin drive; pin drive shanks can sometimes also be used in straight shank mounting.


 
   Tapered Shank
 
     Shank is tapered for mounting in a standard taper such as a Morse taper.


 
   Reduced Shank
 
     Shank mounting diameter is reduced from cutting diameter, often for mounting in a smaller or standard-size chuck.


 
   Hex Shank
 
     Mounting portion of shank is hexagonal in shape for positive-hold mounting in a chuck.


 
   Square Shank
 
     Square shank for handle, wrench, or vise engagement.


 
   Threaded Shank
 
     Shank is threaded for screwing into the mounting arbor.


 
   Other
 
     Other unlisted, specialized, or proprietary shank style.


 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Adjustable?
 
     Counterbore size may be adjusted slightly using screws or other adjustment mechanisms.


 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   NAS Specifications?
 
     Manufactured in accordance with National Aerospace Standards (NAS).


 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Coolant Feed?
 
     Hole or channel for directed coolant feed at or near the cutting edges.


 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
Screw Size




   English Screw Size:       
   Your choices are...
 
      
 
   # 000
 
      
 
   # 00
 
      
 
   # 0
 
      
 
   # 1
 
      
 
   # 2
 
      
 
   # 3
 
      
 
   # 4
 
      
 
   # 5
 
      
 
   # 6
 
      
 
   # 8
 
      
 
   # 10
 
      
 
   # 12
 
     .


 
   1/4"
 
      
 
   5/16"
 
      
 
   3/8"
 
      
 
   7/16"
 
      
 
   1/2"
 
      
 
   5/8"
 
      
 
   3/4"
 
      
 
   7/8"
 
      
 
   1"
 
      
 
   Other
 
     Other unlisted English screw size.


 
   Search Logic:      Products with the selected attribute will be returned as matches. Leaving or selecting "No Preference" will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Metric Screw Size:
 
      
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
Construction




         
   Your choices are...
 
      
 
   Solid / Tipped Flutes
 
     Counterbore is manufactured from a solid piece of material, or solid with brazed tips.


 
   Holder & Inserts
 
     Counterbore is constructed with a holder with attachable inserts; these inserts typically bolt onto the holder are replaceable when the cutting edges are worn.


 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Material       
   Your choices are...
 
      
 
   High Speed Steel
 
     Cost-efficient cutter material, used for general application metal machining.


 
   Cobalt
 
     Cobalt steel tools are somewhat harder than high speed steel and are often used for counter boring in stainless steel and other alloys.


 
   Carbide / Carbide-Tipped
 
     Carbide grades are much harder than high speed steel, and therefore last longer and wear less.  Several coatings are available to lengthen cutter life.  Includes solid carbide and carbide-tipped counterbores.


 
   Diamond / PCD
 
     Industrial diamond grades such as polycrystalline diamond (PCD) are used for very long life, and sometimes for special applications such as very high speed cutting.


 
   Other
 
     Other unlisted or specialized cutter material.


 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Coating / Finish:       
   Your choices are...
 
      
 
   None
 
     Uncoated cutting edges.


 
   Coated
 
     Drill has a coating to assist in cutting lubricity and/or add abrasion resistance for longer tool life.


 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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