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Graphical Construction Glossary >> Tools. >> Power Tools >> Countersink Bits

Countersink Bits
Machine and hand bits for for countersinking holes in wood, metal and plastics.
Countersink, Counterbore
A depression that is made to recieve the head of a screw or bolt so that it does not protrude above the surface.



a tool from rockler.
A 1/2" dia. High Speed Steel Countersink from Rockler.

The bit above has a 1/4" hexagonal shank suitable for using in most electric screwdriver guns that take standard screwdriver bits. It can just as easily be used in a standard three jaw drill chuck

This particular one is designed for power tool use, having only one flute. Bits designed for use in hand tools have many more flutes or cutting edges.

If you live in the US you can find out more about these bits on this Rockler site page.



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Please Note! The information on this site is offered as a guide only!  When we are talking about areas where building regulations or safety regulations could exist,the information here could be wrong for your area.  It could be out of date!  Regulations breed faster than rabbits!
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