PTX Dry Diamond Core Pilot Drill Bit (Dia) 8mm

As advertised, which us to the credit of the sell as the blister pack did not have the necessary detail but did mention a major retailer where I imagine it would have been dearer. I use a file to quickly fettle a little off the taper so it would sit deep enough in my core bit adapter to reach the release tool hole but, what the hec, its impressive that you can dig out and old adapter that has lost its tapered pilot hole bit and get a replacement so easily. Thanks.

No size mentioned, I counted the spirals and took a chance! - It's 204mm end to end, which is about what I needed. Not tried it in anger, but it fits centrally and snugly in my 'Faithfull' brand arbor, and looks decent quality

Just as advertised