4" X 1" X 5/8" UNMOUNTED ALUMINUM OXIDE FLAP WHEEL
The 4" x 1" x 5/8" unmounted aluminum oxide flap wheel is designed for sanding, blending, deburring, cleaning, and surface refinement on flat, curved, and contoured surfaces. Its flexible flap construction conforms well to pipes, tubes, cylindrical workpieces, and irregular shapes while the 4" diameter provides efficient coverage for larger finishing tasks.
Built with aluminum oxide abrasive on a durable X-weight polycotton cloth backing, this unmounted flap wheel is a versatile choice for general-purpose metalworking, woodworking, and surface preparation. The 5/8" arbor hole is designed for compatible bench and pedestal grinders, with seven grit options available for applications ranging from aggressive cleanup to fine finishing.
Quantity: 1 Flap Wheel
Product Specifications
Specification
Details
Wheel Diameter
4"
Face Width
1"
Arbor Hole
5/8"
Abrasive Grain
Aluminum Oxide
Backing
X-Weight Polycotton Cloth
Available Grits
40, 60, 80, 120, 180, 240, 320
Maximum RPM
8,000 RPM
Use
Dry Only
Quantity
1
Product Features
Flexible flap construction conforms to flat, curved, and irregular surfaces
4" diameter provides efficient surface coverage for larger finishing applications
Aluminum oxide abrasive delivers reliable general-purpose cutting and finishing
Durable X-weight polycotton cloth backing combines strength with flexibility
Layered flaps continually expose fresh abrasive as the wheel wears
Seven grit options cover aggressive material removal through fine surface refinement
5/8" arbor hole fits compatible bench and pedestal grinder setups
Materials & Applications
Best For
Deburring edges and contours
Blending and smoothing surfaces
Removing light rust, paint, and surface imperfections
Cleaning weld areas and weld spatter
Surface preparation before coating
Finishing pipes, tubes, and cylindrical workpieces
Sanding larger flat or contoured surfaces
Materials
Ferrous Metals: Cast iron, steel, stainless steel, wrought iron
Non-Ferrous Metals: Copper, titanium, nickel
Other Materials: Fiberglass, plastic, hard rubber, wood, stone
Machine Compatibility
Designed for use with compatible:
Bench grinders
Pedestal grinders
The machine must accept a 5/8" arbor hole wheel and be suitable for the flap wheel's diameter, width, clearance, and operating speed.
Tips for Better Flap Wheel Performance
Let the abrasive do the cutting instead of applying excessive pressure.
Choose a coarser grit when more material needs to be removed.
Use lighter pressure when refining a surface or controlling heat buildup.
Progress through finer grits when a smoother final surface is required.
Present the workpiece evenly to the wheel to help maintain a consistent finish.
Test the selected grit on the workpiece when final appearance is important.
Safety Tips & Techniques
Use this flap wheel for dry applications only.
Confirm the arbor, flanges, guards, and machine setup are compatible before use.
4" X 1" X 5/8" UNMOUNTED ALUMINUM OXIDE FLAP WHEEL
The 4" x 1" x 5/8" unmounted aluminum oxide flap wheel is designed for sanding, blending, deburring, cleaning, and surface refinement on flat, curved, and contoured surfaces. Its flexible flap construction conforms well to pipes, tubes, cylindrical workpieces, and irregular shapes while the 4" diameter provides efficient coverage for larger finishing tasks.
Built with aluminum oxide abrasive on a durable X-weight polycotton cloth backing, this unmounted flap wheel is a versatile choice for general-purpose metalworking, woodworking, and surface preparation. The 5/8" arbor hole is designed for compatible bench and pedestal grinders, with seven grit options available for applications ranging from aggressive cleanup to fine finishing.
Quantity: 1 Flap Wheel
Product Specifications
Specification
Details
Wheel Diameter
4"
Face Width
1"
Arbor Hole
5/8"
Abrasive Grain
Aluminum Oxide
Backing
X-Weight Polycotton Cloth
Available Grits
40, 60, 80, 120, 180, 240, 320
Maximum RPM
8,000 RPM
Use
Dry Only
Quantity
1
Product Features
Flexible flap construction conforms to flat, curved, and irregular surfaces
4" diameter provides efficient surface coverage for larger finishing applications
Aluminum oxide abrasive delivers reliable general-purpose cutting and finishing
Durable X-weight polycotton cloth backing combines strength with flexibility
Layered flaps continually expose fresh abrasive as the wheel wears
Seven grit options cover aggressive material removal through fine surface refinement
5/8" arbor hole fits compatible bench and pedestal grinder setups
Materials & Applications
Best For
Deburring edges and contours
Blending and smoothing surfaces
Removing light rust, paint, and surface imperfections
Cleaning weld areas and weld spatter
Surface preparation before coating
Finishing pipes, tubes, and cylindrical workpieces
Sanding larger flat or contoured surfaces
Materials
Ferrous Metals: Cast iron, steel, stainless steel, wrought iron
Non-Ferrous Metals: Copper, titanium, nickel
Other Materials: Fiberglass, plastic, hard rubber, wood, stone
Machine Compatibility
Designed for use with compatible:
Bench grinders
Pedestal grinders
The machine must accept a 5/8" arbor hole wheel and be suitable for the flap wheel's diameter, width, clearance, and operating speed.
Tips for Better Flap Wheel Performance
Let the abrasive do the cutting instead of applying excessive pressure.
Choose a coarser grit when more material needs to be removed.
Use lighter pressure when refining a surface or controlling heat buildup.
Progress through finer grits when a smoother final surface is required.
Present the workpiece evenly to the wheel to help maintain a consistent finish.
Test the selected grit on the workpiece when final appearance is important.
Safety Tips & Techniques
Use this flap wheel for dry applications only.
Confirm the arbor, flanges, guards, and machine setup are compatible before use.
Never exceed the wheel's marked 8,000 RPM maximum speed.
Make sure the machine provides adequate clearance for the wheel diameter and face width.
Frequently Asked Questions
Unmounted flap wheels are commonly used for sanding, blending, deburring, cleaning, and surface refinement on bench and pedestal grinders. Their flexible flaps allow them to follow contours and irregular shapes while still covering larger areas efficiently.
Shaft-mounted flap wheels have an integrated shank and are intended for compatible straight die grinders and rotary drills. Unmounted flap wheels use a center arbor hole and are designed for compatible bench or pedestal grinder setups.
The 4" diameter provides more working surface than smaller mounted flap wheels, making it well suited for broader areas, pipes, tubes, and general shop finishing where a stationary grinder is preferred.
Lower grit numbers remove material faster, while progressively finer grits provide greater control and a smoother scratch pattern. Refer to the Which Grit Should I Use? chart above for a quick selection guide.
No. The grinder, arbor, and proper flanges must be designed for a 5/8" arbor-hole wheel and provide clearance for the 4" diameter and 1" face width. The machine no-load speed must not exceed the wheel's marked maximum RPM. Bore size alone does not establish compatibility.
This unmounted flap wheel is intended for compatible bench and pedestal grinders. It is not a shaft-mounted wheel for handheld die grinders or drills.
No. This flap wheel is designed for dry use only.
No. 8,000 RPM is the wheel's maximum allowable speed, not a recommended operating speed. The machine's no-load speed must not exceed the wheel's marked maximum RPM, and use must follow both manufacturers' instructions.
No. This product is sold as 1 flap wheel.
SHIPPING
FREE LIGHTNING FAST SHIPPING!
You read that right, Free shipping on orders over $100 + Orders placed before 12 noon PST = SHIP SAME DAY!
Orders placed after noon will ship the following day.
Standard FREE shipping is UPS Ground or USPS priority depending on size and weight. Most customers receive
their order within 3-5 days from date of purchase. Faster shipping options available for additional charge.
Free shipping not available on international orders. Free shipping will only be available to orders being
delivered within the lower 48 states.
Refund
Not happy with your product? Welcome to hassle free returns. Just shoot us an email, call the toll free number
or click the chat button below. One of our helpful employees will get you set up with an RGA and return
shipping info.
