RBG 712 Mower Blade Grinder & Sharpener

The RBG 712 Mower Blade Grinder & Sharpener makes sharpening lawn mower blades fast and easy. Designed for commercial landscapers, it delivers factory-precision results with every pass—cutting your sharpening time in half while boosting blade longevity and mower performance.

Made in the USA from 11-gauge formed steel, the RBG 712 is built for heavy daily use. The preset 30° blade guide ensures every blade gets a true factory edge, while the RBG 780 7” fast grind disc wheel eliminates the need for wheel dressing or constant adjustments.

Key Features:

• Includes one RBG 780 7" fast grind disc wheel – designed for minimal dust and fast, cool grinding
• Preset 30° blade guide – delivers a clean, factory-quality cut edge
• ½ HP, 1725 RPM motor – ideal for sharpening 1 to 50 mower blades per day
• Sharpens any length blade – including standard and reverse rotation blades
• Heavy-duty construction – 11-gauge steel for vibration-free stability
• Simple operation – no wheel dressing or alignment guesswork required
• Compact size – 17"W x 11.5"D x 11"H (22.5"W x 15.5"H with grit collector)
• Approximate shipping weight: 45 lbs
• Made in the USA

Why Choose RBG Over Economy Grinders?

• Sharpen faster and extend the life of your blades
• Consistent, factory-flat results every time
• No adhesive pads or makeshift DIY setups
• Designed for 20+ years of commercial use
• Backed by full parts and accessory support

Accessories Available (Sold Separately):

• RBG940 Grit Collector – keeps your workspace clean and safe
• RBG981 Replacement Grinding Wheel – OEM-quality performance
• RBG934-50 Mulch Plate Adapter – for curved and mulching blades
• RBG125 Grinder Stand – optional stand for a dedicated sharpening station

In Stock with FREE Shipping – Only at MowMore.

Frequently Asked Questions