MGD-4031 Steel Body Filler Blades — 3-Piece Set (4″ Width) — Case of 25

Speed up panel prep on broad repair areas with the MGD-4031 3-Piece 4-Inch Steel Body Filler Blade Set. Packaged for high-volume body shop stations, this set focuses exclusively on the industry-standard 4-inch blade size—the primary choice for metal technicians applying polyester body filler, lightweight putty, and fiberglass resin over large repair zones.

Uniform Spring Tension & Large Surface Coverage

Crafted from high-tensile, tempered spring steel, MGD-4031 blades feature engineered flex memory that returns to a flat state after every pass. The 4-inch wide face maintains consistent contact pressure across flat panels and sweeping body crowns, allowing technicians to lay down razor-thin, uniform skim coats that drastically reduce block-sanding labor.

Precision Ground Edges for Ridge-Free Finish

Each blade features a smooth, ground edge profile that glides over uncured body filler without dragging, catching, or gouging into previous layers. The balanced flex allows smooth feathering along the repair periphery, blending the filler edge seamlessly into bare metal or sanded OEM paint.

Impervious to Solvents & Easy Maintenance

Unlike disposable plastic spreaders that wear down, knife-edge, or melt when cleaned with thinners, smooth tempered steel resists chemical degradation. Cured filler pops cleanly off the steel face with a simple flex, or wipes down instantly with lacquer thinner, maintaining a rust-resistant, reusable edge for long-term shop performance.