Husqvarna X-Cut 18" .325" Pitch Chain 2-Pack — .050" Narrow Kerf, 72-Link SP33G

Two genuine Husqvarna X‑Cut 18" replacement chains (part 581643672) — .325" pitch, .050" gauge narrow‑kerf, supplied as a retail‑packaged 2‑pack for compatible Husqvarna saws.

This set contains two new Husqvarna 581643603 cutting chains built to the X‑Cut SP33G specification. Designed as semi‑chisel, round‑ground cutters with low kickback characteristics, these chains fit standard 18" guide bars and are sharpenable using 3/16" round files. The .325" pitch combined with a .050" (50 gauge) narrow kerf delivers a lighter chain with a thin cut profile that helps reduce drag and improve cutting speed on general‑purpose and demanding consumer tasks.

Will these chains fit my Husqvarna saw model?

Check your owner's manual and the bar nose/drive link count to confirm compatibility. These X‑Cut chains are intended for 18" bars and have 72 drive links, matching many mid‑size Husqvarna saws and models that accept .325" pitch, .050" gauge chain.

• Fits 18" guide bars with 72 drive links.
• Compatible with several Husqvarna models that use .325"/.050" chains (verify with manual).
• Retail packaged 2‑pack for easy replacement planning.

How do these chains perform compared with other chain types?

The SP33G X‑Cut design balances cutting speed, ease of sharpening and reduced kickback risk. The semi‑chisel, round‑ground cutters are durable for everyday heavy use while remaining easier to keep sharp than full‑chisel profiles in dirty wood.

• Round‑ground semi‑chisel cutters resist dulling from abrasive wood and dirt.
• Narrow kerf (.050") reduces load on the saw motor and improves feed speed.
• Low kickback geometry improves control for demanding consumer and professional jobs.

What maintenance and sharpening do these chains require?

These X‑Cut chains are designed to be sharpened with a 3/16" round file and file guide to maintain cutter geometry. Regular cleaning, correct tensioning and timely sharpening keep cutting consistent and extend chain life.

• Sharpen with a 3/16" round file to restore cutting edges.
• Keep proper chain tension and clean oil channels for performance and safety.
• Replace when cutters or drive links are excessively worn or damaged.

Who is this for: This 2‑pack of genuine Husqvarna X‑Cut 18" chains is aimed at homeowners, arborists and pros who run mid‑sized Husqvarna saws and want factory‑specified replacement chains that balance everyday cutting performance with simple field sharpening. If you need a reliable spare set for yard work, storm cleanup or regular jobsite use and your saw accepts .325" pitch, .050" gauge chain with an 18" bar and 72 drive links, this package gives two ready‑to‑install chains in retail packaging. Always confirm fitment in your saw's manual before purchase and follow safety guidelines when installing and operating cutting equipment.