Dynabrade Products
Dynabrade Products 52257 Straight Die Grinder 0.7 hp 18000 RPM 1/4 in NPT
Straight die grinder delivers 0.7 hp at 18000 RPM with 1/4 in NPT air inlet and includes four collet inserts
- MaterialHAWA
- 7 hp motor delivers high torque for heavy-duty grinding
- 18,000 RPM maximum speed enables fast material removal
- Safety-lock throttle lever prevents accidental startup
- Includes four collet inserts for 1/4 in, 3/8 in, 6 mm and 8 mm shanks
- 1/4 in NPT female air inlet connects to standard shop airlines
Straight Die Grinder 0.7 hp 18000 RPM
The Dynabrade 52257 is a heavy-duty straight die grinder built for metalworking, deburring and finishing tasks. It delivers 0.7 hp at a maximum speed of 18000 RPM. The tool accepts 1/4 in collets as standard and is designed for professional workshops and fabrication shops.
Requires compressed air supply
Operation depends on a compressed air line fitted with a 1/4 in NPT female inlet. The straight body style suits inline access in tight cavities and frees up angular clearance compared with right-angle models. No electrical power or battery is needed for the grinder itself.
Four collet inserts included for multiple shank
The box supplies collet inserts 50013 for 1/4 in, 50014 for 3/8 in, 50016 for 6 mm and 50039 for 8 mm shanks. A safety-lock throttle lever prevents accidental start-up. The kit contains the bare tool only; air hose, lubricator and filter are not included.
Highlights
- 7 hp motor delivers high torque for heavy-duty grinding
- 18,000 RPM maximum speed enables fast material removal
- Safety-lock throttle lever prevents accidental startup
- Includes four collet inserts for 1/4 in, 3/8 in, 6 mm and 8 mm shanks
- 1/4 in NPT female air inlet connects to standard shop airlines
Specifications
| Brand | DYNABRADE |
|---|---|
| Material | HAWA |
Questions about this item
How long can the 0.7 hp motor run at 18000 RPM before the Safety-Lock throttle lever forces a stop?
The Safety-Lock throttle lever stops the grinder instantly when released, so sustained run time is limited only by your air supply and operator fatigue.
What are the noise and heat levels when the grinder runs all day on compressed air?
The tool exhausts air through the body, so heat stays low; noise is typical for a 0.7 hp straight die grinder at 18000 RPM and is managed with hearing protection.
Which air supply fittings must I already own to connect the 1/4 in NPT female inlet?
You need a 1/4 in NPT male fitting on your hose plus a regulator and lubricator set to deliver clean, oiled air at the required pressure.
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