File for .325 Chainsaw Chain: 5 Sharpening Picks Compared (2026)

Compare the picks

Specifications are manufacturer rated, collected 14 October 2026. Weights and dimensions are as listed by the manufacturers. Only one listing states a warranty term.

How we scored them

Each file is scored out of 10 on performance, build, value, safety and warranty, using only what the listing publishes. The scoring weights are explained on our How We Pick page.

Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score. Safety counts only for powered gear or where the listing states safety features; where it does not apply, the score is taken over the remaining 90 points.

Choosing the Right File for .325 Chainsaw Chain

File diameter: 3/16 inch versus 11/64 inch

Matching file diameter to chain pitch is the first rule of chain maintenance. For most standard .325 pitch chains, manufacturers specify a 3/16 inch (4.8 mm) round file. This diameter sits at the correct height in the cutter gullet, creating the proper hook angle along the side plate and top plate cutting edges. However, narrow-kerf .325 chains use smaller cutters that require an 11/64 inch (4.5 mm) round file. Running a standard 3/16 inch file on a narrow-kerf chain places the file too high, creating a blunt cutting angle, while using an undersized file hooks the cutter too deeply and weakens the tooth. Check your saw manual or replacement chain packaging to verify whether your chain is standard or narrow kerf before filing.

Cut pattern: spiral cut versus single cut

Round chainsaw files feature either a spiral cut or a single-cut tooth pattern. Spiral-cut files, such as those made by PFERD and Hipa, use a spiral flute design that shears metal smoothly with minimal friction and leaves a score-free cutter face. Many woodcutters prefer spiral cuts because they bite aggressively and restore a sharp edge in fewer strokes. Single-cut files feature straight, parallel rows of teeth across the file face. They remove material more deliberately, giving the operator steady control without grabbing or gouging into the hard chrome plating of the cutter tooth.

Handles, guide frames and bare files

Filing a chainsaw chain requires firm, straight strokes across each cutter tooth. Bare round files, like those sold in multi-packs, are designed to drop into filing guides or clamp into existing handles. A dedicated filing guide, such as the Stihl 2 in 1 Easy File, holds the round file at the correct depth while simultaneously lowering the depth gauge. If you file freehand in the field, choose a file equipped with a solid wood handle or an ergonomic rubber and PVC grip, or fit a compatible handle onto your bare files before starting work.

Pack quantity and field maintenance

Chainsaw files are consumable tools. Hardened cutter teeth and occasional contact with dirt or frozen wood dull file flutes over time. Once a file begins sliding over a tooth rather than biting cleanly into the steel, it must be replaced. High-volume firewood cutters who buck multiple cords each season benefit from 6-pack or 12-pack bundles, ensuring sharp replacement files are always available in the tool bag. For casual maintenance on a single saw, a single file with an attached handle or a small 3-pack is practical and convenient.

Around the Woodpile

• Store spare round files in a protective case or roll to prevent tooth flutes from rubbing against other metal tools in your field kit.
• Clean wood chips and bar oil residue from cutter teeth before filing so metal shavings do not clog the file flutes.
• Push the file in forward strokes only, lifting the tool off the cutter on the return stroke to preserve the cutting edges of the file teeth.
• Verify your chain pitch and kerf specifications before sharpening, ensuring you do not run a 3/8 pitch 7/32 inch file or 1/4 pitch 5/32 inch file on a .325 chain.
• Always wear heavy work gloves and eye protection when sharpening saw chain cutters on the bar or in a field vise.

Frequently Asked Questions

How to file a chainsaw chain?

Secure the chainsaw in a vise or firmly on the ground, engage the chain brake, and locate the master cutter or shortest tooth as your starting point. Position the round file against the cutter face at the manufacturer specified angle, keeping the file level with the top plate. Push the file forward in smooth, firm strokes, lifting the file completely on the return stroke. File all cutters facing one direction first, then turn the saw around to file the opposing cutters with the same number of strokes per tooth.

How to choose a chainsaw file?

Select your file diameter based strictly on your saw chain pitch and cutter design. Standard .325 pitch chains require a 3/16 inch (4.8 mm) round file, while narrow-kerf .325 chains take an 11/64 inch (4.5 mm) file. Saws running 3/8 pitch chains generally take a 7/32 inch file, and small 1/4 pitch chains take a 5/32 inch file. Matching diameter ensures the file creates the correct side-plate hook angle without undercutting or blunting the cutting edge.

How to use an Oregon chainsaw file guide?

An Oregon file guide clamps over a standard round file, using stamped angle lines on the guide plate to keep your strokes aligned with the cutter edge. Rest the flat guide frame across the top plate of the cutter and the depth gauge, align the guide line parallel to the chainsaw guide bar, and push forward smoothly. The frame prevents the file from dipping too low in the gullet or riding too high on the tooth.

What size file for Milwaukee chainsaw?

The correct file size depends entirely on the bar and chain pitch installed on your Milwaukee chainsaw model. Compact or pruning Milwaukee cordless saws often run small-pitch chains that require a 5/32 inch round file, whereas larger cordless saws equipped with .325 pitch chains require a 3/16 inch round file, or an 11/64 inch file if running a narrow-kerf chain. Always verify the pitch stamped on your Milwaukee guide bar or chain drive link before selecting a file.

How to use a Ryobi chainsaw file kit?

A Ryobi chainsaw filing kit typically includes a round file, a file handle or guide frame, and a flat file for depth gauges. Insert the round file securely into the handle, align the guide frame with the cutter top plate at the specified sharpening angle, and stroke forward along the cutting edge. Once cutter teeth are sharpened to equal length, place the depth gauge tool over the cutters and use the flat file to dress down any high depth gauges.

Related guides

Explore our chainsaw gear hub and read our guide to the best chainsaw sharpener options for woodlot maintenance. If you run Stihl equipment, read our Stihl 2 in 1 Easy File review. Learn how often should you sharpen a chainsaw chain and troubleshoot uneven cutting with our guide on why does my chainsaw cut crooked. For larger saws, see our guide on the chainsaw file for 3/8 chain. Choosing replacement chain? Review our guide on what chainsaw chain do I need and compare the best chainsaw chain models. For field sharpening stability, learn how to use a stump vise and check our comparison of stump vise for chain saw sharpening tools. For shop grinding, read our Oregon bench chain grinder review and the EzzDoo electric chainsaw sharpener review. Always maintain your protective equipment using our chainsaw safety gear checklist, and visit our main chainsaws hub for firewood cutting techniques.