Counterbores

Counterbore, or counterbore cutters, are drill-bits used to make counterbore holes, which is a way of creating a flat-bottomed extension of an existing hole in a material. The counterbore cutter will essentially create a cylindrical cavity at the head of an already drilled hole. This allows the hole to accommodate flat bottomed screw or bolts so that they sit flush to the surface of the material, rather than protruding, while still able to perform their function to the fullest.


When would I need a Counterbore?


The reasons for desiring a counterbore of sunken screw are many. There are aesthetic reasons a manufacturer may want to hide the fixings, in furniture for example, but there are also aerodynamic reasons that are applicable to the aerospace industry.


Counterbores will often be made to be slightly larger than an accommodating bolt, to allow the use of socket wrenches or even screw caps.


Features of a Counterbore


  • Able to be used with conventional power tools

  • No protruding fixings.

  • Increase the aesthetic appeal of the finished product.

...
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Beskrivning Pris Drill Bit Type Thread Size Pilot Diameter Pilot Length Cutter Diameter Cutter Length Shank Type Number of Pieces Shank Diameter Overall Length Material
RS-artikelnummer 522-7452
VarumärkeRS PRO
511,21 kr
Each
Enheter
Counterbore M8 8.4mm 9.5mm 15mm 19mm Screwed 1 10 mm 87.3 mm Steel
RS-artikelnummer 522-7474
VarumärkeRS PRO
595,43 kr
Each
Enheter
Counterbore M10 10.5mm 11mm 18mm 19mm Screwed 1 10 mm 89 mm HSS
RS-artikelnummer 522-7480
VarumärkeRS PRO
752,28 kr
Each
Enheter
Counterbore M12 13mm 13.5mm 20mm 25.5mm Screwed 1 12 mm 108 mm HSS
RS-artikelnummer 131-858
VarumärkeRS PRO
229,87 kr
Each
Enheter
Counterbore M8 9mm - 15mm 22mm Plain 1 12.5 mm 100 mm HSS
RS-artikelnummer 522-7430
VarumärkeRS PRO
323,64 kr
Each
Enheter
Counterbore M5 5.3mm 6.5mm 10mm 12.5mm Screwed 1 6 mm 70 mm HSS
RS-artikelnummer 132-025
VarumärkeRS PRO
989,77 kr
Each
Enheter
Counterbore Set M3 to M10 - - - - - 6 - - HSS
RS-artikelnummer 522-7446
VarumärkeRS PRO
366,81 kr
Each
Enheter
Counterbore M6 6.4mm 8mm 11mm 12.5mm Screwed 1 6 mm 76 mm HSS
RS-artikelnummer 131-864
VarumärkeRS PRO
114,99 kr
Each
Enheter
Counterbore M4 4.5mm - 8mm 14mm Plain 1 5 mm 71 mm HSS
RS-artikelnummer 131-870
VarumärkeRS PRO
136,03 kr
Each
Enheter
Counterbore M6 6.6mm - 11mm 18mm Plain 1 8 mm 80 mm HSS
RS-artikelnummer 131-886
VarumärkeRS PRO
129,89 kr
Each
Enheter
Counterbore M3 3.4mm - 6mm 14mm Plain 1 5 mm 71 mm HSS
RS-artikelnummer 132-031
VarumärkeRS PRO
513,59 kr
Each
Enheter
Counterbore M12 14mm - 20mm 22mm Plain 1 12.5 mm 100 mm HSS
RS-artikelnummer 131-842
VarumärkeRS PRO
125,68 kr
Each
Enheter
Counterbore M5 5.5mm - 10mm 18mm Plain 1 8 mm 80 mm HSS
RS-artikelnummer 132-019
VarumärkeRS PRO
1 705,99 kr
Each
Enheter
Counterbore Set M3 to M10 - - - - - 12 - - HSS
RS-artikelnummer 131-993
VarumärkeRS PRO
248,41 kr
Each
Enheter
Counterbore M10 11mm - 18mm 22mm Plain 1 12.5 mm 100 mm HSS
RS-artikelnummer 522-7424
VarumärkeRS PRO
289,11 kr
Each
Enheter
Counterbore M4 4.3mm 5.5mm 8mm 12.5mm Screwed 1 6 mm 65 mm HSS
RS-artikelnummer 508-9238
Tillv. art.nr05863
VarumärkeEXACT
971,53 kr
Pr. Set
Sats(er)
Counterbore Set M3 to M10 - - - - - 6 - - HSS
RS-artikelnummer 508-9244
Tillv. art.nr05846
VarumärkeEXACT
233,26 kr
Each
Enheter
Counterbore M10 11mm - 18mm - Plain 1 12.5 mm 100 mm HSS
RS-artikelnummer 508-9250
Tillv. art.nr05845
VarumärkeEXACT
215,02 kr
Each
Enheter
Counterbore M8 9mm - 15mm - Plain 1 12.5 mm 100 mm HSS
RS-artikelnummer 508-9266
Tillv. art.nr05844
VarumärkeEXACT
123,36 kr
Each
Enheter
Counterbore M6 6.6mm - 11mm - Plain 1 8 mm 80 mm HSS
RS-artikelnummer 508-9036
Tillv. art.nr05841
VarumärkeEXACT
118,38 kr
Each
Enheter
Counterbore M3 3.4mm - 6mm - Plain 1 5 mm 71 mm HSS
Related Products
Counterbores for cutting holes where a capscrew or ...
Description:
Counterbores for cutting holes where a capscrew or fastener is required to sit flush or even below the level of the workpiece. Thread size is the size of the screw thread to sit within the hole and cutting diameter shows ...