Product Overview
A 120 Grit Flap Wheel Small Enough to Follow the Contour
Condition
New Merit Grind-O-Flex mounted flap wheel. We stock these in quantity, so the wheel in the photos is representative of the stock rather than the individual piece you receive. In those photos the abrasive flaps stand full and evenly stacked around the hub, the flap edges look crisp and unloaded, and the printed blue label reads MERIT, GRIT 120 and 30,000 MAX RPM cleanly enough to read at a glance. The 1/8 inch steel mandrel is bright and straight along its full length, with a small shoulder near the tip visible in the side view, and the amber core disc that carries the flaps sits square on the shank. The dark diamond plate under the wheel is our photo bench, and the hand in one frame is there for scale only.
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Product Overview
This is a Merit Abrasives Grind-O-Flex MiniWheel, part number 08834131834, a shank mounted flap wheel measuring 1-3/16 inch in diameter with a 3/16 inch face width on a 1/8 inch steel shank. The abrasive is 120 grit aluminum oxide, and the wheel label carries a 30,000 RPM maximum rating. The flaps are bonded into an epoxy core that is permanently mounted on the steel mandrel, so the whole head is one piece and there is no nut, washer or arbor to lose. A flap wheel this small earns its keep by conforming: the individual cloth flaps flex against the work and follow a contour or a compound radius instead of flattening it the way a rigid mounted stone would. As the leading edges of the flaps wear away, fresh abrasive comes forward, so the cut stays consistent instead of glazing over. The 1/8 inch shank is the standard collet size for pencil-style die grinders, rotary tools and small drill chucks. Sold each, and the photographed piece is representative of our stock.
Key Features
- Merit Abrasives Grind-O-Flex MiniWheel, part number 08834131834
- 1-3/16 inch diameter by 3/16 inch face width
- 1/8 inch steel shank, the common collet and small chuck size
- 120 grit aluminum oxide abrasive cloth flaps
- 30,000 RPM maximum, printed on the wheel label
- Epoxy core permanently mounted on the steel mandrel, no assembly hardware
- Flaps wear back to expose fresh abrasive for a consistent cut
- Sold each, with deep stock on the shelf
Applications
- A machinist knocking the burr off internal radii and slot corners on a small milled bracket, where a rigid stone would leave a flat.
- A fabricator blending small tack welds and heat scale in a tight inside corner with a 1/8 inch collet die grinder.
- A restorer cleaning light surface rust and old finish off small steel hardware before paint or plating.
- A model and mold maker feathering a compound radius by hand, letting the flaps follow the shape already cut.
Frequently Asked Questions
What tools will a 1/8 inch shank fit?
The 1/8 inch shank is the standard collet size on pencil-style and small air die grinders, rotary hand tools, and it will also chuck into a portable drill. Check your collet or chuck capacity before ordering if your tool takes only 1/4 inch shanks.
How aggressive is 120 grit on this wheel?
120 grit is a blending and finishing grade, not a stock removal grade. It is the right call for knocking down a burr, softening a tool mark, cleaning light scale or putting an even satin look on steel. If you need to remove real material, start coarser and finish with this one.
How fast can I run it?
The label on the wheel reads 30,000 MAX RPM. Never exceed the wheel's rated speed, and match it against your tool's free speed, since many air die grinders idle well above that figure and will need to be regulated down. Standard eye protection and guarding rules apply.
Am I getting the exact wheel in the photographs?
No. We stock these in quantity, so the photographed wheel is representative of the stock. You are buying one wheel of the same Merit part number, size and grit, sold each.
Why buy two or three here instead of a box of fifty somewhere else?
Because most jobs need a couple of these, not a case. A flap wheel this small is a consumable with a short working life, and buying the exact count you need for the bracket in front of you beats paying for forty-seven more that will dry out in a drawer. Order one to try the grit, or a handful to get through a run, and add the coarser or finer sizes you actually use. Shipping is a flat $8.00 and goes free once your order passes $28.00, with orders leaving our Idaho warehouse the same or next business day.
Flap wheels do their best work in the places a rigid stone cannot reach: inside a radius, along a fillet, around the corner you already cut. Chuck this one up at 120 grit and let the flaps follow the shape instead of arguing with it.
