Marshalltown B48B 48 Inch x 8 Inch Magnesium Bull Float Blade Square End Concrete Finisher Lightweight Extruded Mag Flatwork Tool

Professional Grade Concrete Leveling with Precision Square Ends

Achieve a perfectly flat and smooth concrete slab with the Marshalltown B48B 48" x 8" Magnesium Bull Float Blade. Manufactured from the finest extruded magnesium available, this professional-grade replacement blade offers the ideal balance of lightweight maneuverability and heavy-duty durability. Unlike wood or steel floats, magnesium slightly opens the concrete's pores, allowing bleed water to evaporate effectively—a critical step in preventing surface crazing and ensuring a long-lasting, durable finish.

This specific model features Square Ends, making it the superior choice for finishing tight corners and working flush against form boards where rounded blades might leave gaps. Engineered for the serious contractor, the blade is properly balanced to glide effortlessly over wet concrete, cutting down high spots and filling voids with minimal operator fatigue. Please note that this listing is for the blade only; it requires a compatible bracket and handle (sold separately) to complete your finishing setup.

Key Features

• Premium Extruded Magnesium: Offers superior strength-to-weight ratio, ensuring the tool is lightweight yet incredibly durable.
• Square End Design: Perfect for finishing corners and floating right up to the edge of wall forms.
• Surface Optimization: Magnesium construction helps open surface pores for proper evaporation of bleed water.
• Professional Balance: Weighted and shaped to provide excellent control for consistent leveling.
• Long-Wearing: Built to withstand the abrasive nature of concrete for years of reliable service.
• Made in the USA: Proudly manufactured with global materials for quality you can trust.

What's Included

• (1) 48" x 8" Square End Magnesium Bull Float Blade (B48B)
• *Note: Bracket and Handle sold separately.

Specifications

Pro-Tip: While square-end floats are excellent for corners, they can dig into the wet concrete if you turn sharply in the middle of a slab. To prevent gouging, maintain a steady, shallow angle during your passes and lift the leading edge slightly when changing direction. If you are new to finishing, or working in wide open spaces, consider a round-end float for general use.