M&R TOOLS Chainsaw Chain 20″

This 20-inch chainsaw chain from M&R TOOLS is a solid, no-nonsense replacement part designed to get your saw back to work efficiently. It’s built with decent steel and the cutters seem sharp enough out of the box for most common tasks. For the price, it’s a sensible option if you’re looking to avoid paying premium for a brand name you might not even recognize on your saw in the first place. It’s not going to win any awards for groundbreaking innovation, but it does what it’s supposed to do: cut wood. If you’ve got a 20-inch bar on your petrol chainsaw and need a new chain without breaking the bank, this is definitely worth considering.

What We Noticed

Holding this chain, the metal feels robust, and the individual links are well-formed. The chrome plating on the cutters has a uniform sheen, suggesting a decent manufacturing process. It feels like a chain that’s ready to go to work without needing extensive adjustments right away.

Standout Features

• Durable Steel Construction: The chain is forged from hardened steel, which means it’s designed to withstand the rigors of cutting wood and resist wear. This translates to fewer sharpenings and a longer lifespan for the chain, saving you time and money in the long run.
• Sharp Cutters: The cutting teeth are precision-ground to provide efficient wood removal from the get-go. You’ll notice it bites into the wood effectively, making your cutting tasks quicker and less strenuous.
• 20-inch Length: This specific length is designed to fit a wide range of common 20-inch chainsaw bars. It’s a standard size, making it a versatile replacement option for many petrol-powered saws.

Specs

Length	20 inches
Pitch	3/8" Low Profile (Commonly)
Gauge	.050" (Commonly)
Drive Links	72 (Typical for 20" bar)
Material	Hardened Steel

Care and Usage Notes

To keep this chain performing at its best, regular maintenance is key. Always ensure your chain is properly tensioned before use; a loose chain can derail, and an overly tight one will cause premature wear on both the chain and your saw’s bar. Check it after a few minutes of initial use and again periodically. Lubrication is also crucial – make sure your chainsaw’s automatic oiler is functioning correctly and that the oil reservoir is full. A dry chain will overheat quickly, dulling the teeth and potentially damaging the bar. Sharpen the chain regularly; dull teeth make the saw work harder, are less safe, and produce a lot of sawdust instead of clean cuts. For most users, a file and guide will suffice for touch-ups between professional sharpenings.

This chain is best suited for general-purpose cutting, limbing, and felling smaller to medium-sized trees. If you’re regularly tackling extremely hard woods or doing heavy-duty professional logging, you might want to consider a more specialized, heavy-duty chain. This is a workhorse for the homeowner or occasional user.

Frequently Asked Questions

How do I know if this chain will fit my saw?

The most important factors are the length of your guide bar (which should be 20 inches), the chain pitch, and the chain gauge. This chain is typically designed for a 3/8" low-profile pitch and a .050" gauge, which are very common on 20-inch bars. It’s always best to check the specifications on your current chain or in your chainsaw’s manual to be absolutely sure.

Is this chain ready to use right out of the box?

For the most part, yes. The cutters are pre-sharpened. However, you’ll still need to tension it correctly on your saw’s bar before you start cutting. Always double-check the tension after the first few minutes of operation.

What kind of wood is this chain best for?

It’s designed for general wood cutting. It will handle pine, fir, oak, and similar common types of wood very well. For very dense hardwoods or extremely dirty conditions (like cutting into the ground), you might see faster wear, but for typical yard work and firewood preparation, it’s more than capable.