Stens New 750-058 Blade Lock Style, Clamps to Mower Deck and Prevents The Blade from Rotating, Locks Blade to Make Removal or Installation Safer and Easier GB 5555 Black

What It Is

The Stens 750-058 is a blade lock tool that clamps to your mower deck to prevent the blade from rotating during removal or installation. It’s designed for walk-behind and zero-turn mowers, making blade swaps safer and easier by eliminating the need to hold the blade by hand or jam a block of wood.

Fitment & Compatibility

Before buying, confirm your mower deck has a flat, accessible metal surface near the blade spindle—this lock clamps onto the deck edge, not the blade itself. It fits most standard residential and commercial decks from brands like Toro, John Deere, Husqvarna, Craftsman, and MTD, but it won’t work on decks with curved, raised, or obstructed edges. Measure the deck thickness: the clamp accommodates up to about 1/4-inch steel. It’s not model-specific, but it’s incompatible with decks that have a stamped or plastic lip. No OEM part number cross-reference needed—this is a universal tool, not a direct replacement part.

Key Things to Know

• Build quality: Stens is a reputable aftermarket brand; this lock is made of steel with a black powder-coat finish. It holds up well under regular use but may show rust if left outdoors.
• Installation difficulty: Very easy—no tools required. Just clamp it onto the deck edge and tighten the knob. It locks the blade in place via a pin that engages the blade hole.
• Common gotchas: The pin must align with a blade hole; if your blade has a non-standard center hole shape (e.g., oval or keyed), it may not fit. Also, the clamp can slip on thin or painted decks if not tightened firmly—check for movement before wrenching.
• Safety note: Always disconnect the spark plug before using this tool. It prevents rotation but doesn’t lock the engine.

Should You Buy It

Yes, if you change blades more than once a season and want a safer, hands-free alternative to wedging a stick or risking pinched fingers. It’s a solid, affordable tool for DIYers and pros, but skip it if your deck has a non-flat edge or you only need a blade change once a year.