Excellent 4.9 | 18,452 reviews

DYNABRADE Dynafile II Abrasive Belt Tool, Slow Speed - 40381

$641.99

$641.99 ~~$855.99~~

SAVE 25% Sold out

Product variants

DYNABRADE Dynafile II Abrasive Belt Tool, Slow Speed - 40381

$641.99

$641.99 ~~$855.99~~

SAVE 25% Sold out

DYNABRADE Dynafile II Abrasive Belt Tool, Slow Speed - 40381

.4 hp, 7 Degree Offset, 5,000 RPM, Front Exhaust, for 1/4"-3/4" W x 18" L (6-19 mm x 457 mm) Belts.
Grind, deburr, blend and polish, on metal, plastic, fiberglass, composites, rubber, glass and more. Grind from contact wheel or platen pad; finish and polish using slack of belt.
1,500 SFPM. Slow speed ensures longer belt life when working on titanium and other exotic materials.
Includes 11206 Contact Arm for 3/4" wide x 18" long belts.
Belt guard easily detaches for quick abrasive change; simple belt tracking adjustment knob.

Specifications

Air Consumption (SCFM)	24.0
Power (hp)	0.4
Max. RPM	5,000
Max. SFPM	1,500
Air Inlet Thread	1/4" NPT
Exhaust Type	Front
GL_Country Of Origin	US
Hose I.D. in. (mm)	3/8"
Vacuum Type	Non-Vacuum
Motor Type	Rotary Vane
Height in. (mm)	5.75
Length in. (mm)	15.5
Weight lb. (kg)	2.85
Width in. (mm)	16.5
Pkg. Height in. (mm)	4.5
Pkg. Length in. (mm)	10
Pkg. Weight lb. (kg)	3.66
Pkg. Width in. (mm)	6.25
CE Certified	Yes
EAN (UPC)	0616026403819
EAC Certified	Yes
Tool Style	7 Degree Offset

What our Experts Think

Optimized for Controlled Finishing – The slow-speed design of the Dynabrade 40381 provides greater control for delicate grinding, polishing, deburring, and finishing applications.
Excellent for Precision Surface Work – Ideal when working on heat-sensitive materials or applications that require a finer, more controlled finish.
Reaches Tight & Intricate Areas – The narrow abrasive belt design easily accesses corners, contours, weld seams, and hard-to-reach surfaces.
Superior Finish Quality – Lower belt speeds help reduce material removal aggressiveness, making it easier to achieve smooth, professional-grade results.
Comfortable & Easy to Handle – Lightweight ergonomic construction improves maneuverability and reduces operator fatigue during detailed work.
Built for Professional Use – Durable industrial-grade construction ensures reliable performance in fabrication, manufacturing, and maintenance environments.
Best For: Fine deburring, weld blending, polishing, aerospace manufacturing, toolmaking, automotive restoration, and precision surface preparation.

Q&A

Q: What is the DYNABRADE 40381 Dynafile II Slow Speed Abrasive Belt Tool used for?
A: It is designed for precision grinding, deburring, blending, polishing, and fine finishing applications.

Q: What is the advantage of a slow-speed abrasive belt tool?
A: The slower belt speed provides greater control, reduced heat buildup, and improved surface finish on delicate materials.

Q: Is this tool suitable for detailed finishing work?
A: Yes, it is ideal for precision surface preparation and finishing in tight or hard-to-reach areas.

Q: What materials can it be used on?
A: It is suitable for metal, stainless steel, composites, plastics, and other industrial materials.

Q: How can I maintain optimal performance?
A: Keep abrasive belts properly tensioned, use clean compressed air, inspect components regularly, and replace worn belts as needed.

Maintenance Tips

Lubricate the air motor daily with the recommended pneumatic tool oil.
Inspect abrasive belts regularly and replace worn, damaged, or stretched belts promptly.
Keep contact wheels, guide arms, and belt tracking components clean and free of debris.
Verify proper belt tension and tracking before operation to reduce wear and improve performance.
Use clean, dry compressed air at the recommended pressure to protect internal components.
Check air hoses, fittings, and guards for leaks or damage during routine inspections.
Tighten loose fasteners and monitor moving parts for signs of wear.
Clean the tool after use and store it in a dry, dust-free environment to maximize service life.