Diamond File 4mm for small sizes Chainsaw Chain
Diamond File 4mm for small sizes Chainsaw Chain
Diamond File 4mm for small sizes Chainsaw Chain
Diamond File 4mm for small sizes Chainsaw Chain

Diamond File 4mm for small sizes Chainsaw Chain

$205.00 $20.00 Save $185.00
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  • In stock, ready to ship
  • Inventory on the way

Back in stock 5th June 2026 - while stocks last!

1x Diamond Sharpening File 4mm for 3/8LP and .325 Chainsaw Chain

  • Size: 4mm 
  • Suitable for 3/8LP, .325 chain.
  • Sharpens both Tungsten, Tungsten Carbide & Steel chains. 
  • Diamond Grit Size #150.
  • Low heat transfer results in a long lasting razor sharp edge.

Diamond files are suitable for sharpening both steel and tungsten-carbide tipped chains. Due to their high-quality diamond coating, these files last much longer than Steel files. For Sharpening Tungsten Chains used with normal hardwood we recommend not sharpening but using the chain till failure of the tungsten tips due to the chain being blunted by abrasion.  The time saved generally is worth more than the chain life extension.  However sharpening is recommended for Tungsten Chains that are cutting extremely hard or abrasive wood such as Ironbark and of course Steel chains in any use.  

10 Reasons why we KNOW with unwavering CERTAINTY that ToughMAX PRODUCTs and SERVICE are AWESOME!

  1. We can DOUBLE your Wood Cut.
  2. We eliminate Sharpening Problems.
  3. A proven system to improve your RESULTS.
  4. We are an Australian Company
  5. We know and understand our products as we cut wood too.
  6. Our 60 day fair use GUARANTEE.
  7. We are Responsive  with before and after sales Service and Advice.
  8. We do all we can for you to have the right chain for your saw.
  9. A  Unique product made to handle Australian conditions.
  10. We give extra support via our own private Facebook Group.
  11. Proven track record with over 1000 positive feedback/reviews. Which is another 1000 reasons to trust us.

We guarantee that Products are the equal of any in the world. 

Please do not hesitate to contact us for other Bar and Chain lengths or for fitment to other saws, if we know you want it, we can stock it in the future.

These chains are made to order and so express shipping is not possible. Most times these chains are shipped next business day.

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Testimonials

★★★★★

After buying Tungsten Chains and Bars from China I only found disappointment. However, when I switched to this ToughMax product, I got exactly what I expected as a professional forester.

DT - Victoria
★★★★★

For many years I used only Genuine Stihl bars in my saws, a few years ago I noticed that my Genuine Stihl Bars no longer lasted as long as they used to. I started using these ToughMax Bars and was pleasantly surprised in that they have the quality and hard wearing of the old Stihl Bars at a significantly lower price.

JA - NSW
★★★★★

Wow, such a great bar, low friction, lower operating temperature, really superior in doing what a good bar should do which is guide and hold the chain square to the cut under extreme conditions. This really is a tough bar; you have won me!?

LD - QLD
Los Angeles, CA
★★★★★

I put 14 tank-fulls of fuel through my MS660 with that chain and Bar. It's still is cutting wood. I thought that was impossible LS. (14 tank-fulls of fuel in a high-performance saw represents about 15,000kg of wood cut).

TG - SA
★★★★★

I started using these Bars and Chains 2 years ago and the productivity increase amazed me. Myself and the friends that I shared these ToughMax products with can testify to amazing performance in extreme cutting conditions.

JJ - WA.

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