need a strange drill bit

[daz]

I am at a loss to find one of the following, does anybody know of a supplier?

HSS, 10mm shank dia, 14mm cutting dia, 150mm length (not critical) and it has its own pilot drill.

Anybody have any ideas or suggestions

TIA

Daz

[Fergus OMore]

If it is a 'one off' you could use a cheap carbon steel spade drill  after grinding the blade down to 14mm.

Again, classically, you want a D bit.

There are MORE answers- but you have a couple from me.

[BillTodd]

The pilot drill grinding is going to be the expensive bit, so why not use a drill a pilot hole first?

You could just grab a 14mm drill in the lathe and turn the shank to 10mm.

Bill

[daz]

thabks for the answers guys.
FO, it is being used in a handheld drill so I don't think a D bit would be of any use. My first thought was using a spade bit, but after showing one to the guys doing the work they decided they didn't want to use one for some reason??? It would be the easiest and quickest option

BT, I had also suggested a pilot hole and then follow with the 14, but it is being used in a production environment and would add too much time and an extra process. Turning the shank down to 10mm myself might be an option. We are going to need a few of these drills as we have a couple of thousand units to do just to start with, hopefully a lot more to follow if we get it right.

cheers again for the replies
daz

[Jasonb]

Could you get away with a 15mm hole ? in which case J&L MSC do metric step drills which are designed to drill clearance and counter bore for the head in one go. M8 one would do you. Just need to turn the shank down which is quite easily done

http://www.mscjlindustrial.co.uk/DKG-30591K/SEARCH:KEYWORD/product.html

They also do arcraft counterbores that are made to go in handheld drills, 9/16 outer body is about 14.2mm and they take a range of pilot drill diameters. Look at page 133 of their online catalogue.

J

[No1_sonuk]

What material does it need to cut?