The Flott fine replacement grinding wheel 250 × 40 × 51 mm is an abrasive consumable for professional use available at Krollit, an official Flott distributor since 2007.
- Diameter: 250 mm
- Thickness: 40 mm
- Bore: 51 mm
- Grit: Fine
- Supply: Loose grinding wheel (replacement)
Who uses the fine replacement grinding wheel 250 × 40 × 51 mm and for what
Workshops, joineries and body shops use the fine replacement grinding wheel 250 × 40 × 51 mm for sanding, finishing and surface preparation on the materials and with the grits indicated in the specifications.
Its place in the Flott range
The Flott fine replacement 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 performance levels: to choose the right machine for your use case, you can consult the Flott catalog on Krollit or contact customer support for assistance with selection.
Krollit logistics and support
Shipping 3-5 working 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 fine replacement grinding wheel 250 × 40 × 51 mm for
The fine replacement grinding wheel 250 × 40 × 51 mm is recommended for the following professional profiles:
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Workshops, joineries and body shops: sanding, finishing and surface preparation with the indicated grits.
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Users with compatible machines (diameter/attachment): original spare part 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 workpiece.
Technical specifications
| Diameter |
250 mm |
| Thickness |
40 mm |
| Bore |
51 mm |
| Grit |
Fine |
| Supply |
Loose grinding wheel (replacement) |
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 sharpening HSS, use K60-K80. For sanding on soft wood, start with K80, on hardwood K100. Progress gradually: each grit approximately 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 that expose new grains).
Which machine/size is it compatible with?
Check the belt dimensions (e.g., 75×533 mm, 100×610 mm) or disc dimensions (Ø 115, 125, 150 mm) in the title.
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 does the package contain?
See "Packaging" or "Quantity" in the product's technical data sheet.
Krollit supplies standard manufacturer packages (typically 5, 10 or 25 pieces). 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 binder of sandpaper and drastically reduces its lifespan. For belts not in use, hanging them vertically prevents permanent creases that cause slipping during operation.
