anyone willing to make a hole guide specially for rails?

[magicniner]

I've made you a 4.2mm drill guide with 9.47mm OD to a shoulder in Hardened Silver Steel.
As it isn't a delicate part it is hardened and not tempered so it will definitely last you your job.



For anyone not aware what goes into making such a simple little part the steps are as follows
1. Buy or have stock of suitable material, in this case Silver Steel round bar
2. Chuck it in the lathe and face the part
3. Centre drill the hole
4. Peck drill the hole to size, if you simply plunge drill it increases the chances of the hole deviating off centre.
5. De-Burr the hole
6. Turn the guide OD to a shoulder, making a small relief cut at the shoulder.
7. De-Burr the edges where the face meets the shoulder and the shoulder meets the OD
8. Part off to length
9. Remove the stock from the chuck and mount the part reversed in the lathe
10. Face the parted surface and de-burr the hole and outer edge.
11. Take the part and heat to cherry red then plunge into cold water, agitating to speed cooling
12. Dry the part and then back in the lathe both ways round to polish all surfaces

After that it just needs oiling, bagging and shipping, PM me your address and I'll post it with my next trip to the Post Office