SKILSAW SPT79-00 15 Amp 7 in. Corded Medusaw Worm Drive Concrete Saw

Item No. 23884
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The SKILSAW SPT79-00 15 Amp 7 in. Aluminum MEDUSAW Worm Drive Circular Saw for Concrete makes the job a whole lot easier when there's concrete to conquer. It’s the world’s first fully integrated worm drive saw designed specifically for scoring and cutting concrete accurately. This one’s got our legendary SKILSAW worm drive power train, plus a unique Cut-Ready adjustable plunge lock and a pivoting pointer for unmatched precision and convenience. Used wet or dry, the dual integrated dust management system takes dust out of your way. And rust-resistant brackets and fasteners resist corrosion for long life. Armed with MEDUSAW, you’ll power through the toughest concrete jobs.


  • First worm drive concrete saw delivers a complete concrete cutting system with worm drive power and durability
  • Cut-Ready adjustable plunge lock quickly and easily sets straight plunge cuts
  • The wet/Dry dust management system controls dust for cleaner cuts and longer tool life
  • GFCI protection reduces the risk of shock to the user
  • Rust-resistant brackets and fasteners protect against corrosion to extend tool life
  • Retractable front pointer guides saw along cut line and retract for tight spaces
  • Integrated rolling foot plate with rubber wheels allows saw to move smoothly across concrete surfaces
  • Powerful Dual-Field Motor increases cooling and extend tool life
  • Multi-function wrench stored in foot designed to easily change blades, brushes, water feed attachment and wheels


  • (1) SKILSAW 7 In. MEDUSAW Worm Drive for Concrete (SPT79)
  • (1) Vacuum hose adapter with clamp
  • (1) Water feed assembly
  • (1) Multi-function wrench


Amperage15 A
Maximum RPM - No Load5100
Arbor Size7/8 in.
Blade Size7 in.
Cord Length10 ft.
Maximum Cut Depth at 90-Degree2 in.
Foot MaterialAluminum
Gear HousingAluminum
Motor GearingWorm Drive Geared
Motor HousingAluminum
Blade LocationLeft