Dulotec Double-Sided Folding Diamond Sharpener – 240# / 400#

10,00 €

For severely dull knives and tools
Quickly removes material and shapes the cutting edge
Portable, lightweight, and comfortable to use.
Two sides with different grit sizes.
No oil required; sharpens dry or with water.

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In stock

SKU: d-29-51-4438 Category: Sharpeners

Dulotec 240# / 400# Double-Sided Folding Diamond Sharpener

The Dulotec diamond sharpener is a compact and lightweight sharpening tool, suitable for everyday use. Its double-sided design offers two different abrasives in a single tool.

When folded, the abrasive surfaces are protected by plastic caps. This protects the sharpener from damage during storage and transport.

Abrasives and Their Applications

240# / 62 microns – a very coarse diamond grit, designed for initial cutting edge formation and for severely worn or damaged cutting edges.
400# / 35 microns – coarse diamond, for quick restoration of the cutting edge.

Dimensions and Weight

Dimensions (mm) (closed): 125 x 30 x 15
Dimensions (mm): 225 x 30 x 15
Working surface (mm): 100 x 20 x 5
Weight: 66 grams

Sharpening Stone Specifications

No lubrication required—it operates dry or with water.
It maintains its effectiveness even with prolonged use.
Perfect for home, the workshop, camping, or everyday use.

Specifications	Value
Brand	Dulotec
Model	Double-sided foldable diamond sharpener, 240# / 400#
Category	Sharpeners
Type	Folding Diamond Sharpener
Abrasive, Side 1	240# / 62 microns (very coarse)
Abrasive, Page 2	400# / 35 microns (coarse)
Closed Dimensions	125 x 30 x 15 mm
Size (unfolded)	225 x 30 x 15 mm
Work surface	100 x 20 x 5 mm
Weight	66 grams
Directions for Use	Dry or with water

Frequently Asked Questions

What is the 240# abrasive on the Dulotec sharpener used for?

The 240# (62-micron) abrasive is designed for very coarse grinding of the cutting edge. It is used during the initial shaping of the cutting edge on a new knife or on blades that are heavily worn or damaged. This is the first step in sharpening a knife in poor condition. This side removes more significant irregularities and shapes the basic geometry of the blade. After working with the 240# grit, it is recommended to switch to a finer abrasive for better results.

What is the difference between the 240# and 400# sides of a diamond sharpener?

The 240# side has a coarser abrasive (62 microns) and is used for more aggressive metal removal—it is suitable for severely dull or damaged cutting edges. The 400# side has a finer abrasive (35 microns) and allows for faster restoration of the cutting edge on moderately worn knives. With regular knife maintenance, it is usually sufficient to use only the 400# side. The 240# side is used less frequently—when the blade is in poorer condition. Together, the two sides cover a wide range of sharpening needs.

Should water or oil be used when working with the Dulotec diamond sharpener?

The Dulotec sharpener does not necessarily require the use of lubricants. It can be used completely dry, which is convenient for outdoor or field use. If desired, a small amount of water can be added to help wash metal particles off the surface during operation. The use of oil is not recommended, as it can clog the diamond abrasive particles and reduce the sharpener’s effectiveness. Dry use is entirely sufficient for good results.

How should the foldable diamond sharpener be stored?

When folded, the abrasive surfaces of the sharpener are covered by plastic protective caps. These protect the diamond surfaces from mechanical damage when stored in a toolbox, backpack, or pocket. Thanks to its compact dimensions when closed—125 x 30 x 15 mm—the sharpener takes up minimal space. It is recommended to store it in a dry place to prevent possible corrosion of the metal parts. The plastic caps are an integral part of the design and ensure the longevity of the abrasive surfaces.

Is the sharpener suitable for use while camping?

Yes, the Dulotec 240# / 400# sharpener is particularly well-suited for outdoor use, including while camping. It weighs only 66 grams, and when folded, it measures 125 x 30 x 15 mm, making it easy to carry. It requires no lubrication, so it can be used anywhere without additional equipment. The plastic caps protect the abrasive surfaces in your backpack or pocket. Its compact and sturdy design makes it a reliable companion for any outdoor adventure.

How long does the Dulotec diamond sharpener last with regular use?

The sharpener is designed for long-lasting and reliable performance with regular use. Thanks to the durability of the diamond abrasive particles, it retains its effectiveness for years. The Dulotec brand focuses on an optimal balance between price and quality, without unnecessary compromises on key features. Proper maintenance—cleaning after use and storing it with the caps on—contributes to a longer tool life. With normal use, the sharpener is a reliable sharpening tool for a long period of time.

What is the difference between the 240#/400# model and the 600#/1200# model from Dulotec?

The 240# / 400# model is designed for coarser blade finishing—it is suitable for initial sharpening and for restoring heavily worn knives. The 600# / 1200# model is for final finishing—the 600# side (25 microns) produces a razor-sharp edge, while the 1200# (9 microns) polishes and improves cutting performance after working with coarser abrasives. For a complete sharpening cycle from coarse to fine, it is recommended to use both models sequentially. Each covers a different stage of the sharpening process. The choice depends on the initial condition of the blade and the desired end result.

Weight

0,1 kg

Dimensions

12,0000 cm