Kraft Tool Co 26 Ft. x 2 In. x 5 In. Magnesium Screed

Description

Span expansive concrete slab pours with the Kraft Tool 26 Ft Magnesium Screed to strike true grade on massive industrial highway decks. Extruded genuine magnesium maintains high rigidity across three hundred twelve inches without sagging. Moving this colossal manual straightedge demands three or four finishers on site, making it useless for solo tradesmen or tight residential basement slabs.

Extruded virgin magnesium alloy forms this rectangular hollow box profile, holding bare tool weight to 34.5 lbs. Dimensions span 312 inches in length, 2 inches in width, and 5 inches in vertical depth. Magnesium repels caustic concrete grout and resists drag adhesion far better than aluminum. Internal web walls limit lateral flex under drag loads, keeping the bottom strike face square against form rails during grueling flatwork passes across commercial bridge approaches.

Key Features of Kraft CC426

Highway paving contractors who buy Kraft CC426 straightedges take advantage of competitive commercial screed pricing while eliminating joint lines across broad slab pours.

• Twenty-six foot continuous span eliminates multiple pour cold joints on expansive bridge and apron projects
• Extruded magnesium alloy reduces total weight to thirty-four pounds for manageable crew handling across form rails
• Two-by-five inch rectangular hollow profile delivers extreme vertical stiffness to stop mid-span sag
• Sealed plastic end plugs stop wet concrete paste from entering the internal structural extrusion chamber
• Machined contact faces ride smooth on steel or wood screed rails without binding or chatter
• Non-corrosive magnesium metal resists aggressive chemical attacks from calcium chloride admixtures and curing agents
• Symmetric profile design allows flipping the straightedge to balance wear across both working edges

Deflection Tolerances Bench Testing

Static deflection tests across a twenty-six foot span reveal less than 0.090 inches of center drop under self-weight when supported at both ends. When loaded with an additional 50 lbs of center downward force, total vertical displacement stays below 0.165 inches. Torsional twist resistance remains superior to open channel profiles, showing zero angular deviation under 40 ft-lbs of twisting force. On live highway flatwork tests, the straightedge scraped coarse aggregate clean, creating a uniform grade line across forms without mid-span dip.

Field Usability Realities

Lifting and dragging this 26-foot straightedge requires synchronized crew teamwork with grab points positioned along the span. Balance stays true on rail walks. Do not buy this oversized manual screed for small patio jobs, residential garage floors, or spaces with vertical plumbing penetrations.

• Hose down the magnesium box beam with water before concrete paste hardens on outer surfaces
• Store the straightedge flat on level racks to prevent longitudinal bow during hot summer months
• Inspect both running edges with a taut string line every month to catch distortion damage

Kraft Tool Warranty Manifest

Kraft Tool backs this straightedge with a 1-Year limited manufacturer warranty against material defects and extrusion flaws. The heavy shipping tube contains the authentic 26-foot magnesium screed, two pre-installed protective plastic end plugs, and factory product care documentation for immediate field deployment on commercial job sites.