Product Positioning

Detail Finishing Tool for Internal Surfaces and Complex Profiles

Mounted flap wheels are positioned as precision abrasives for die grinders, air tools, and drills, targeting areas that angle grinders cannot reach: internal holes, slots, radii, narrow edges, complex contours, and localized welds.
Their value is accessibility and control—ideal for deburring, chamfering, spot dressing, and internal surface blending.

 

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Technical Specifications

Configurable by Shank Standard, Wheel Size and Abrasive System

Item	Specification
Product Type	Mounted flap wheels
Abrasive	AO / Zirconia / Ceramic options
Diameter	3/8″–3″ (10–80 mm)(extendable)
Width	3/8″–2″ (10–50 mm)(extendable)
Shank Diameter	3mm / 6mm / 1/4″ (optional)
Grit Range	P40 – P180 (extendable)
Construction	Layered coated cloth flaps
Max RPM	Marked per size & standard

 

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Processing Logic

Small-Diameter Coaxial Rotation + Multi-Flap Contact for Internal Finishing

• Mounted flap wheels work differently from angle-grinder flap discs:
• Coaxial rotation suits internal walls and contour following with predictable scratch direction;
• Small contact footprint enables precise deburring/chamfering;
• Continuous flap engagement reduces gouging and improves blending;

Making them ideal for the final stage—cleaning edges, holes, and internal surfaces for uniform results.

 

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Backing Structure & Performance Limits

Detail Tool, Not a Heavy Stock Removal Wheel

• Strengths: strong access and control for internal/complex profiles
• Limits: not for heavy stock removal or large-area grinding; choose flap discs or belts for productivity

Small diameter is more sensitive—excess pressure or dwelling can cause overheating, burn marks, or dimensional errors

 

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Machine Compatibility & Operating Conditions

Die Grinders / Air Tools / Drills—Match Shank Size and RPM

• Machines: die grinders, air tools, drills/rotary tools (application-dependent)
• Must match: shank diameter (commonly 3mm / 6mm / 1/4″) to collet/chuck; RPM must stay within rated limits (never overspeed)
• Recommended conditions: medium to low pressure, continuous movement, staged cooling when needed

 

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Engineering Comparison

Comparison	Mounted Flap Wheels	Mounted Grinding Points	Nonwoven Mounted Wheels
Stock removal	Medium	High	Low
Blending/finish	Excellent	Average (gouging risk)	Excellent
Dimensional impact	Low–Medium	Medium–High	Very low
Best areas	holes/edges/contours	heavy spot grinding	conditioning/texture
Forgiveness	Medium–High	Low	High

 

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Typical Applications & Industries

Internal Deburring and Precision Finishing Across Industries

• Edge deburring and chamfering for machined parts (CNC, stamping, castings)
• Internal blending and spot dressing on stainless/aluminum
• Molds, fixtures, and complex profile finishing
• Pipes, valve bodies, fittings, and internal bore work

 

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Grit Range & Recommended Use

Grit Strategy for Internal Finishing

Typical recommendation

• P40–P60: deburring and spot dressing (productivity focus)
• P80: general blending and scratch unification (most common)
• P120–P180: refinement and cosmetic finishing, reducing deep scratches

 

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OEM & ODM Capability

Internal-Finishing Customization for Tooling Systems

OEM/ODM supported: wheel diameter/width, shank standards, abrasive systems, flap density & layup angle, core material/hardness, private label/packaging, and kit programs—engineered for internal finishing processes and collet/chuck standards.

 

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Why Choose Us

Internal Consistency Depends on Concentricity, Bonding and Flap Control

Stable mounted flap wheels require concentricity control, uniform flap layup, and a reliable bonding system—especially at small diameters. Concentricity affects vibration and scratch patterns; layup and bonding determine cutting feel and life variation. We engineer for batch stability to make internal finishing repeatable.

 

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Usage & Storage Recommendations

Best Results Come from Controlled Pressure and RPM

• Never overspeed; follow rated RPM and ensure secure mounting
• Use medium to low pressure with continuous movement to avoid heat and dimensional drift
• For internal bores, step through grits to reduce rework
• Store dry and shaded; avoid moisture and compression; reseal after opening