collet ID for denford router porter cable spindle

**JAZZCNC** · 18-12-2015

Mark you will find you only really need 2 or 3 sizes of collet because most small tooling comes with shank sizes larger than the cutter. Ie: 1mmDia will have 3mm shank.
You'll find 3 and 6mm collets will cover most of what you'll do with this machine form 1 to 6mm. 12.5mm collet or shank tooling you'll not use much with this machine. Maybe for surfacing but that's about it because it's not upto cutting with large cutters correctly.

**uli12us** · 18-12-2015

Here are Collets similiar to ER fitting in P+C routers.
http://www.precisebits.com/products/...429!!!Kit!!!PG!!!

**kell** · 19-12-2015

Originally Posted by JAZZCNC

Mark you will find you only really need 2 or 3 sizes of collet because most small tooling comes with shank sizes larger than the cutter. Ie: 1mmDia will have 3mm shank.
You'll find 3 and 6mm collets will cover most of what you'll do with this machine form 1 to 6mm. 12.5mm collet or shank tooling you'll not use much with this machine. Maybe for surfacing but that's about it because it's not upto cutting with large cutters correctly.

cheers dean. Ive bought some end mills that do not fit. I think they usually come with three collets and I only have two. But the link which uli12us has sent looks like just the ticket. they should cover everything.

**uli12us** · 19-12-2015

They sell an 1/2" to ER16 adapter as well. But, because of the size 1/2" to 10-11mm it is rather long and expensive. You need with the ERlike collets only 1/8, 1/4 and eventually 1/2" Those collets clamp the metric shafts as well. But the other diametres have no meaningful equivalent in metric. With a 3/16 you can't clamp a 5mm shaft, but 4mm, that isn't a popular shaft diametre.

**kell** · 19-12-2015

Originally Posted by uli12us

They sell an 1/2" to ER16 adapter as well. But, because of the size 1/2" to 10-11mm it is rather long and expensive. You need with the ERlike collets only 1/8, 1/4 and eventually 1/2" Those collets clamp the metric shafts as well. But the other diametres have no meaningful equivalent in metric. With a 3/16 you can't clamp a 5mm shaft, but 4mm, that isn't a popular shaft diametre.

I have ordered the full set because it would work out the same for just two sizes anyway.
kell