Oregon 28840 5/32-Inch Chainsaw Replacement Sharpening Stone | For Sure Sharp Handheld Grinder

Precision sharpening for your chainsaw

Keep your chainsaw ready for dependable performance with the Oregon 28840 5/32-inch replacement sharpening stones. This set is designed for use with the Oregon Sure Sharp handheld grinder and comes with three stones sized to refresh the cutting edge on your chain after regular use. Whether you’re trimming limbs, cutting hardwood, or tidying up rough edges, a sharp chain improves control and reduces resistance as you work.

The trio of stones is crafted to work with 3/8 inch low profile and 1/4 inch saw chains, helping you maintain consistent edge geometry across common chain types. The result is a smoother glide through wood and a more predictable bite, making long sessions less fatiguing and more efficient.

What you get

• Three replacement sharpening stones sized 5/32 inch (4.0 mm)
• Compatibility with the Oregon electric Sure Sharp handheld grinder
• Design engineered to deliver a reliable edge on compatible saw chains

How it works

Swap in a fresh stone and let the grinder do the work. The stones are built to yield a clean, even edge on chains sized for 3/8 inch low profile and 1/4 inch saw chains, supporting steady performance through repetitive sharpening sessions.

• Simple replacement that fits most electric sharpeners in the Sure Sharp family
• Durable construction designed for frequent use with a handheld grinder

Why choose Oregon

Oregon combines durability with precision engineering, and these replacement stones are designed to pair with the Sure Sharp system for quick, consistent maintenance. Expect dependable edge refreshment that supports smoother cuts and easier tracking when you resume work.

Tips for best results include applying light, steady pressure, checking alignment, and allowing brief cooling pauses to minimize heat buildup during sharpening. With proper care, the stones can stay ready for the next job, keeping your workflow flowing more smoothly.