MadModder

The Shop => Tools => Topic started by: chipenter on October 02, 2015, 02:33:01 PM

Title: MT3 collets
Post by: chipenter on October 02, 2015, 02:33:01 PM
I bought a set of MT3 collets from RDG and they woudn't hold the tools , I have some metric collets also new these held well , comaring the two the scuff marks on the metric ones were at the larger end and the RDG ones on the smaller end , as this was solid no wonder they didn't work , turned down a mandrill and clocked up a 20mm metric collet , turned down to 3/4" and ground off 0.002" this made a huge difference in the holding of a tool , did the same for the outher ten , only had one oops set the paper alight covering the bed .
Title: Re: MT3 collets
Post by: Jonny on October 02, 2015, 03:30:56 PM
They ok now Jeff.
Have had some from Chester that wont hold or slip. Two full sets imperial and metric in 3/8"BSW, M10 and M12 from Arc no problem putting a cut on.

Title: Re: MT3 collets
Post by: chipenter on October 02, 2015, 06:54:51 PM
Only tried the 3/4" one with a 1" end mill 1/4" cut on mild steel no slipping , hope the rest are as good .