Does anyone know whether Sinclair turning mandrels will fit a 21st Century neck-turning tool?
Turning mandrels for neck-turning tools
- Thread starter South Pender
- Start date
http://forum.accurateshooter.com/threads/k-m-turner-with-21st-century-mandrels.3975164/
May be some helpful data here. Not sure if you already have the Sinclair to measure.
May be some helpful data here. Not sure if you already have the Sinclair to measure.
Update. In case anyone else is wondering, I've heard from the excellent people at 21st Century Shooting, and it appears that Sinclair mandrels will work in the 21st Century neck-turning tool. I suspect, however, that a better idea would be to go with the 21st Century mandrels as they were made expressly for their tool.
Petros284
Site $$ Sponsor
We do recommend ours since they are sized accordingly for optimal precision. Plus the optional titanium nitride coating is a plus!
Pete. What is the titanium nitride coating (I know it's a gold color)? (I have one of your titanium nitride mandrels in .224 size.) Is it harder than the stainless steel on the regular mandrels? How does it compare with carbide for hardness, durability, and precision of machining?
Petros284
Site $$ Sponsor
TiN coating reduces friction and in turn reduces galling when used in conjunction with a good lubricant. It can at least double the life of the tool versus being uncoated. It does add between .0001” to .0002” to the diameter of the arbor or mandrel but will not affect overall precision in terms of expanding and turning. It is much more durable than just plain stainless.
The main purpose of our expanders is to open up the case to fit over the neck turning arbor by around .001”. Carbide is a different beast and it’s cost is very high in comparison (one of the reasons we do not offer carbide at this time). TiN is harder than carbide but is a coating versus a solid piece. Carbide is brittle if dropped and can easily break or chip.
I’m sure I may start a carbide versus steel debate but you can’t go wrong with either
Cost seems to go out the window for many in this game - what is 'high' in your view, indicative of course. That might test the market for you...?
The don't fit properly, i had the same problem with my complete Sinclair staff so i cancelled my intentions to swing over 21 fst
Upgrades & Donations
This Forum's expenses are primarily paid by member contributions. You can upgrade your Forum membership in seconds. Gold and Silver members get unlimited FREE classifieds for one year. Gold members can upload custom avatars.
Click Upgrade Membership Button ABOVE to get Gold or Silver Status.
You can also donate any amount, large or small, with the button below. Include your Forum Name in the PayPal Notes field.
To DONATE by CHECK, or make a recurring donation, CLICK HERE to learn how.
Click Upgrade Membership Button ABOVE to get Gold or Silver Status.
You can also donate any amount, large or small, with the button below. Include your Forum Name in the PayPal Notes field.
To DONATE by CHECK, or make a recurring donation, CLICK HERE to learn how.