Product Overview
Merit 08834131834 Micro-Mini Abrasive Finishing Head for Rotary Die Grinders
Condition
This item is unused new old stock (NOS) surplus. Flaps are intact, clean, and securely anchored to the molded center hub. The straight steel mounting shank is clean and straight, and the face label is fully legible with clear Merit, Grit 120, and 30,000 Max. RPM markings.
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Product Overview
The Merit Abrasives 08834131834 Grind-O-Flex micro-mini mounted flap wheel is built for fine deburring, edge blending, and detail sanding in tight quarters. Measuring 1-3/16 inches in diameter with a 3/16-inch face width, it mounts via an integrated 1/8-inch steel shank directly into high-speed rotary tools and die grinders. The medium 120-grit aluminum oxide abrasive cloth conforms smoothly to contours, cleaning internal channels and irregular geometries without digging flat spots into the workpiece.
Key Features
- Wheel diameter: 1-3/16 in
- Face width: 3/16 in
- Mounting shank: 1/8 in diameter straight steel mandrel
- Abrasive grain: 120 grit aluminum oxide
- Maximum operating speed: 30,000 RPM
- Backing material: Flexible cotton cloth flaps
- Construction: Permanently bonded solid core hub with integral mandrel
Applications
- Cleaning up weld beads and blending transitions inside narrow tube junctions and cast intake ports
- Removing light burrs and flash from machined aluminum brackets or custom stamped metal brackets
- Smoothing 3D-printed metal parts and cleaning tight contours on custom knife bolsters or jewelry castings
- Deburring internal pipe threads and smoothing drilled holes in sheet metal enclosures
Frequently Asked Questions
What tool does this flap wheel mount into?
The wheel features an integrated 1/8-inch steel shank that fits standard 1/8-inch collets on pneumatic die grinders, flexible shaft systems, and rotary hobby tools.
What is the maximum safe operating speed?
The factory maximum operating speed is 30,000 RPM, as indicated on the hub face label. Always run within this rating and wear eye protection during use.
Why buy individual flap wheels from PartsMine instead of a bulk lot?
Buying individual units lets you stock the exact grit and size needed for a specific job without committing to a large bulk lot. More pieces cost less each, and the price-break table on this page shows what each quantity costs. Shipping is an $8 flat rate, free on orders over $28, and orders leave our Idaho warehouse the same or next business day.
A small flap wheel turns a brutal grinding task into a controlled touch. Chuck it up, spin it true, and let the cloth do the work where rigid stones cannot reach.
