what is the difference between countersunk and countersink.
I need to countersink / countersunk load of hole the same depth and was wondering what tool can i use.

joe, July 2008

Hi, I guess 'sink' is what your about to do and 'sunk' is after you have done it?
Anyway probably much the same thing. The choice is yours, you can drill your holes to the depth you require with the correct drill bit for your application and then change over to a countersink bit. This is placed over and into each hole and applying pressure to the drill will countersink the hole to whatever depth you wish ( normally only sufficient depth that allows the head of your screw to sit flush or slightly below the surface of what you are drilling into).
Today at Homebase, B&Q and the like, you can purchase the above items seperately or even as a more expensive combined item where you drill and c/sink all in one action, however if you choose this option you are better deciding exactly what size and (maybe depth if applicable) you want to drill before you buy the correct combined version.

kevin mckeever, August 2008

Thanks caine for your answers.
I'm fitting down floorboards and want to countersink the screws to fit flush with the floorboards. I have got a countersink bit that will fit my battery drill but it's not that easy to get them the same depth. I have seen a countersink tool a long time ago that you could adjust it to the depth you want but i don't no the name of it.

joe, July 2008

Sorry,did'nt finish answr.Various countersinks are availiable the best of whitch are "snail"type cutters,they produce better results.But I'd have to say the only truelly sucessfull method for drilling is to use a piller drill and depthstop arrangment.If I knew the material and level of accuracy required I could advise better.Try "axminster machine tools "for online catt and prices.

caine, July 2008

countersink is the tool,or the action.countersunk is the result.You would use a countersink to machine a recessed angled hole in wood/metal.once done the resulting countersunk holes would permit the screws to be below or flush with the surface.counterbore would be the process to produce a hole for boltheads or allen screws.

caine, July 2008