Metabo HPT 5 Inch 15 Amps MFE 40 Wall Chaser for Concrete

Description

OSHA respirable silica standards mandate clean dust containment when carving electrical conduit channels into concrete walls. The Metabo HPT MFE 40 Wall Chaser cuts parallel channels for conduit and water lines in masonry. A 15-amp motor drives twin five-inch diamond blades. Operating this chaser without an OSHA-compliant HEPA vacuum will fill rooms with hazardous concrete dust.

Die-cast aluminum forms the blade guard, base plate, and gear housing, resisting abrasive masonry grit while shedding motor heat. The 15-amp, 1,900-watt Marathon motor operates on standard 120-volt current, spinning blades at 5,000 RPM through high-torque planetary reduction gearing. Tool weight sits at 10.1 lbs unboxed, presenting an agile 18.0 by 8.5 by 8.0 inch profile that maneuvers between wall framing studs.

Key Features of Metabo MFE40

Commercial electrical contractors and mechanical plumbers run this wall chaser for hidden conduit chases, heating pipes, and junction box cutouts. Compare equipment dealer pricing to buy Metabo MFE 40 wall chasers for fast dust-free wall channel installations.

• Fifteen-amp Marathon motor delivers massive torque to spin twin diamond blades through concrete.
• Adjustable channel width spacer rings set groove gaps from nine up to thirty-five millimeters.
• Variable plunge depth adjustment locks cutting depth between ten and forty millimeters.
• Integrated vacuum extraction port connects to HEPA vacs to capture silica dust at source.
• Pushing cut motion allows natural body leverage while keeping sightlines clear on chalk lines.
• Electronic overload protection prevents motor burnouts during aggressive stone chasing passes.
• Mechanical safety clutch decouples drive gears if diamond wheels bind inside hard aggregate.
• Spindle lock button speeds twin blade swaps using the included two-hole pin spanner wrench.

Gearbox Torque Bench Load Metrics

Arbor spindle runout tests within 0.0006 inches TIR across the twin-blade mounting collar. Free-running speed hits 5,000 RPM, settling at 4,450 RPM when cutting forty-millimeter channels in cured concrete block. The mechanical safety clutch slips in less than 0.1 seconds upon encountering solid structural rebar. Gearbox casing temperatures rise 28 degrees Fahrenheit over ambient air after cutting twenty linear feet of channel. The sealed planetary gear drive transfers motor torque without gear tooth chatter or hesitation.

Wall Chasing Ergonomics Service Realities

The pushing cut design lets electricians push with their body weight along vertical wall marks, avoiding shoulder cramps from dragging heavy tools. The trigger power switch features a positive lock-on button operable through rubber work gloves. Do not buy this small chaser for wide trenching or thick sidewalk slab demolition. Commercial electricians and plumbing contractors cutting conduit channels gain immense speed from this tool.

• Blow fine silica dust from motor cooling vents with clean compressed air every week.
• Inspect the vacuum hose adapter rubber seal for wear after twenty hours of chasing.
• Wipe concrete grit from depth adjustment guide tracks with a dry shop rag every day.

Factory Package US Warranty Details

Metabo backs this wall chaser with a 3-Year limited commercial warranty covering motor and electronic drivetrain components. The durable steel carry case contains the MFE 40 wall chaser, spacer rings, clamping nut, pin spanner wrench, break-out chisel tool, and user manual. Five-inch diamond blades ship under separate order.