The Flott coarse grit grinding wheel 250×40×51 mm is an abrasive consumable for professional use available on Krollit, official Flott distributor since 2007.
- Outer diameter: 250 mm
- Thickness: 40 mm
- Hole: 51 mm
- Workable materials: Steel, iron, hard metals
- Compatibility: Flott grinders and sharpeners
- Grit: Coarse
Who uses the Flott coarse grit grinding wheel 250×40×51 mm and for what
Workshops, carpentry shops, and body shops use the Flott coarse grit grinding wheel 250×40×51 mm for sanding, finishing, and surface preparation of materials and grits indicated in the specifications.
Its place in the Flott range
The Flott coarse grit grinding wheel 250×40×51 mm is part of the Flott abrasive consumables range, distributed in Italy by Krollit since 2007. The Flott range includes models of various categories and performances: to choose the machine suitable for your use case, you can consult the Flott catalog on Krollit or contact customer support for selection assistance.
Krollit logistics and support
Shipping 3-5 business days from Krollit warehouse for spare parts and accessories. Customer support in Italian available for technical documentation and compatibility verification with the reference machine. Krollit has been an official distributor since 2007.
Who is the Flott coarse grit grinding wheel 250×40×51 mm for
The coarse grit grinding wheel 250×40×51 mm is recommended for the following professional profiles:
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Workshops, carpentry shops, and body shops: sanding, finishing, and surface preparation in the indicated grits.
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Users with compatible machines (diameter/attachment): original replacement for the machines indicated in the description.
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Materials outside product specifications: check the grit and supported material to avoid damaging the piece.
Technical specifications
| Outer diameter |
250 mm |
| Thickness |
40 mm |
| Hole |
51 mm |
| Workable materials |
Steel, iron, hard metals |
| Compatibility |
Flott grinders and sharpeners |
| Grit |
Coarse |
Frequently asked questions
Which grit should I choose for my work?
K36-K60 for roughing and paint/glue removal; K80-K120 for intermediate sanding; K150-K240 for pre-painting finishing.
K36 grit is too aggressive for sharpening tools (it damages the edge). For HSS sharpening use K60-K80. For sanding soft wood start with K80, for hard wood K100. Progressively increase: each grit roughly doubles the fineness.
Normal corundum or zirconium corundum?
Normal corundum for wood (red); zirconium corundum (blue) for metal or intensive use, it is self-sharpening.
Normal corundum is the universal choice for wood and finishes. Zirconium is more aggressive, recommended for iron and light alloys, and maintains its edge thanks to its self-sharpening action (fragments expose new grains).
Which machine/size is it compatible with?
Check the title for the belt dimensions (e.g., 75×533 mm, 100×610 mm) or disc (Ø 115, 125, 150 mm).
Abrasive belts should be chosen based on the circumference of the sander's roller. Common sizes: 40×303 mm (handheld), 75×533 mm (benchtop), 100×610 mm (semi-industrial). Also check the direction of travel (arrows on the back).
How many pieces are in the package?
See "Packaging" or "Quantity" in the product data sheet.
Krollit supplies standard manufacturer packages (typically 5, 10, or 25 pcs). For intensive professional use, it is advisable to keep a stock of at least 2-3 packages of different grits.
How should abrasive consumables be stored?
In a dry place, away from heat sources and humidity, keeping the original packaging closed.
Humidity degrades the abrasive paper's binder and drastically reduces its lifespan. For unused belts, hanging them vertically prevents permanent creases that cause slippage during operation.
