8TEN LawnRAZOR Blade for Ariens Gravely Exmark Apex ZT HD 48 Pro-Turn 148 Lazer Z CT 05244100 103-6581-S Toothed 3 Pack

What It Is

The 8TEN LawnRAZOR Toothed Blade is a high-lift, serrated aftermarket blade designed for 48-inch and 52-inch Ariens, Gravely, and Exmark zero-turn mowers. It’s built for heavy-duty cutting of thick, wet, or tall grass where standard blades struggle.

Fitment & Compatibility

Before buying, verify these three things:

• Deck size: This 3-pack fits 48-inch and 52-inch decks only. Measure your deck width—do not assume based on model name alone.
• Model range: Confirmed for Ariens Apex, Gravely ZT HD, Exmark Lazer Z CT, Pro-Turn 148, and Lazer Z. Also fits Exmark 05244100 and 103-6581-S OEM blades.
• Measurements: Blade length is 18.5 inches, center hole is 1 inch, and thickness is 0.25 inch. If your OEM blade matches these, it will fit. If your deck uses a different hole size (e.g., 5/8 inch or 7/16 inch), this blade won’t work.

Always double-check your mower’s model number and deck serial. Aftermarket blades vary slightly—some users report needing to ream the center hole for a snug fit on specific Exmark spindles.

Key Things to Know

• Quality & balance: These blades are heat-treated and coated for rust resistance. Most users report they come pre-balanced, but always check with a blade balancer before installing.
• Installation difficulty: Easy for anyone with a socket wrench and jack stands. Use a torque wrench (tighten to 70-90 ft-lbs) and replace all three blades at once for even wear.
• Common gotcha: The toothed edge can be aggressive on thin turf or dormant grass—may leave a slightly ragged cut if the lawn is too dry. Not ideal for Bermuda or fine fescue.
• Lift & mulching: High-lift design throws clippings far, but it’s not a true mulching blade. Use only for bagging or side-discharge.

Should You Buy It

Buy this if you have a 48-inch or 52-inch Ariens, Gravely, or Exmark zero-turn and regularly cut tall, wet, or thick grass. The serrated edge extends sharpness between sharpenings, but skip it if you need a clean finish on manicured lawns or mostly mulch clippings.