Improved Version Mower Blade Sharpener & Balancer Replace 5005、42-047 Blac,15°-45° Adjustable Magnetic Mower Blade Balancer for Many Types of Mower Blade.

What It Is

This is a combined magnetic blade sharpener and balancer that replaces OEM models 5005 and 42-047. It’s designed for sharpening and balancing rotary mower blades on walk-behinds, riding mowers, zero-turns, and some tractor finish mowers.

Fitment & Compatibility

Before buying, measure your blade’s center hole diameter – this unit works with blades that have a 5/8” to 1” center hole. It fits most standard blades up to 21” long, but won’t work with blades over 1” center hole or those with odd-shaped center holes (e.g., some commercial or offset blades). It’s not compatible with reel mowers or mulching blades with deep curves. Check your OEM blade part number against 5005 or 42-047 for a direct match.

Key Things to Know

• Adjustable angle: The sharpening guide adjusts from 15° to 45°, but the magnetic balancer only works properly if the blade is clean and dry – oil or debris will throw off the balance reading.
• Fitment check: If your blade has a raised center boss or a non-round hole, this balancer may not seat correctly. Test with a spare blade first.
• Build quality: The magnet is strong enough for most blades, but some users report it can slip on heavier (over 12”) blades if not centered precisely.
• Installation difficulty: Easy – clamp the blade in a vise, set the angle, and sharpen with a file or grinder. The balancer is separate; spin the blade on the magnetic cone to check balance.

Should You Buy It

Buy this if you sharpen multiple mower blades per season and want a combined tool that handles both sharpening and balancing. It’s a good upgrade over basic manual files, but skip it if you only have one mower or use blades with non-standard center holes – a simple balancer and file will cost less.