DYNABRADE
DYNABRADE 52420 offset air cut-off tool 20000 rpm 28 cfm 0.5 hp 90 psi
Offset air cut-off tool runs at 20000 rpm with 0.5 hp and 28 cfm at 90 psi
- Heavy-duty cutting at 20,000 RPM
- Offset design improves reach in tight spaces
- Safety-lock lever prevents accidental starts
- 5 hp motor delivers consistent power
- 28 cfm airflow at 90 psi pressure
Offset Cutting Tool for Tight Spaces
The Dynabrade 52420 is a pneumatic cut-off tool built for heavy-duty metal fabrication and automotive repair. Its offset head design positions the 3-inch wheel parallel to the workpiece for flush cuts in confined areas. Professionals use it for sheet metal trimming, exhaust work and spot weld removal where straight tools cannot reach.
20000 RPM Free Speed at 90 PSI
This tool delivers a no-load speed of 20000 rpm when supplied with 90 psi air pressure through a 1/4-inch NPT male inlet. The 0.5 hp motor consumes 28 cfm, so the compressor and hose must sustain that flow to maintain cutting performance. The safety-lock lever prevents accidental throttle engagement during connection or positioning.
Bare Tool with Speed Control Lever
The kit contains only the tool body and its integrated safety-lock lever; no cut-off wheels, guards or lubrication accessories are included. Operators must supply compatible 3-inch wheels with a 3/8-inch arbor hole and provide their own filter-regulator-lubricator unit for clean, oiled air. Front exhaust directs air away from the cut line but adds noise at the operator position.
Highlights
- Heavy-duty cutting at 20,000 RPM
- Offset design improves reach in tight spaces
- Safety-lock lever prevents accidental starts
- 5 hp motor delivers consistent power
- 28 cfm airflow at 90 psi pressure
Specifications
| Brand | DYNABRADE |
|---|
Questions about this item
What does 20000 rpm mean for actual cutting speed on metal?
The 20000 rpm maximum speed lets the 3 inch wheel complete cuts quickly, though feed rate and material hardness determine real-world cutting time.
How does the 1/4 in NPT air inlet limit airflow in practice?
The 1/4 in NPT male inlet caps flow at 28 cfm, so the compressor and hose must supply that volume at 90 psi for full 0.5 hp output.
What mounting or clearance does the offset body need?
The offset design with parallel wheel orientation and standard reach fits tight spots, requiring only the 3/8 in arbor hole to accept a 3 inch cut-off wheel.
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