Why Carbide Mandrels Work Better for Neck-Turning
If you have ever turned a large quantity of case-necks using power assist, you know that a carbide mandrel can make the job go easier, with better end results. In our experience, when using carbide mandrels (as opposed to ordinary steel), the cases move more smoothly with less heat build-up. Pat Reagin of PMA Tool explains why carbide neck-turning mandrels work better:
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Carbide offers several advantages over conventional steel and stainless steel when making any tooling, specifically neck-turning mandrels: Dimensional Stability — Carbide maintains its dimensions indefinitely during heating and cooling. This eliminates the need to allow the mandrel time to cool every few cases. Coefficient of Friction and Wear-Resistance — Carbide exhibits a low coefficient of friction value as compared to all steels and wears up to 100 times longer. This reduces (but does not eliminate) the amount of lubricant required. Galling Resistance — Carbide has exceptional resistance to galling and welding at the surface. This basically eliminates the chance of getting a case stuck on a mandrel due to insufficient lubrication. |
Given the benefits of carbide neck-turner mandrels, you may be asking “where can I get one?” Sinclair Int’l offers carbide mandrels for Sinclair neck-turners for $49.99, in a full range of calibers: 17, 20, 22, 6mm, 25, 6.5mm, 270, 30, and 338.
$49.95 Carbide Mandrels from PMA Tool
PMA Tools now also offers carbide mandrels in a full variety of sizes. At $49.95 each, PMA’s carbide mandrels are priced competitively with Sinclair’s mandrels. PMA offers carbide mandrels in .17, .20, .22, 6mm, 6.5mm, 7mm and .30-caliber. These will work with Sinclair Int’l and 21st Century neck-turners, as well as PMA neck-turners. PMA tells us: “We now have carbide neck-turning mandrels in stock. These mandrels are made with high-tech CNC grinding-machinery, and should give you excellent results. We hope to be add other larger-caliber carbide mandrels to our lineup in the future.”
Similar Posts:
- Sinclair Releases New, Advanced Neck Turning System
- PMA Tool Now Offers High-Quality Carbide Expander Mandrels.
- Update from PMA Tools — Special Deals, New Products
- Gear Review: PMA Neck Turning Tool
- Why You Should Use Expander Mandrels on New Brass
Tags: Arbor, Carbide, Mandrel, Neck-Turner, Neck-Turning, PMA Tools, Sinclair Int'l
Will these carbide mandrels fit a Sinclair’s NT-4000 Premium Neck Turning Tool?
Yes sir, they sure will. All of our mandrels are compatable with all Sinclair, 21st Century Shooting and of course PMA Tool neck turners.
Let me know if you have any other questions. patr@pmatool.com
Pat
338lapua: get yourself one of these turners!
IMO, Sinclair brought it to market, so the market should reward them, even @ $49.95.
http://www.sinclairintl.com/.aspx/pid=36422/Product/Sinclair-Carbide-Turning-Mandrels
Now if you did something other than sinclair has already been doing, that would be different and better for all.
Have you considered making carbide EXPANDER mandrels?
Back in the late 90s, I wrote an article about the K&M tool, that offered the option of a carbide mandrel. Are you sure that Sinclair’s offering of that feature predates that? I don’t remember. Over the years, Sinclair has been pretty free about making their own versions of other people’s products. This would tend to make me less concerned about buying something that was the same as something that they sell.
PMA makes carbide expander mandrels!
PMA makes some great products.