Rozsutec – Natural Whetstone for Fine Scythe Blades | Fine Grit

The Rozsutec natural whetstone is a 100% natural grinding stone made from hard sedimentary sandstone and has been crafted for decades by a small family business in Terchová in the Slovak Malá Fatra Mountains.
Thanks to its fine, dense structure, the Rozsutec is particularly well suited for honing finely peened scythe blades that you use in fine to medium vegetation. The stone is extremely hard and loses virtually no material during grinding.

The stone measures approximately 21 cm in length and weighs about 250 g. Since each Rozsutec is handcrafted, shape and dimensions may vary slightly from the stated average – each piece is unique with its own grain pattern and edge profile.

Application

The Rozsutec should always be used wet so that the fine structure can work optimally. It’s best to store it in a water-filled whetstone holder or case, or moisten it thoroughly before honing. The water keeps the stone’s pores clear, improves grinding performance, and ensures even material removal.

Note on Sharpening Performance

The Rozsutec is a fine natural whetstone and requires that the scythe’s cutting zone is already thin and well peened. If the cutting edge no longer becomes properly sharp despite regular honing with the Rozsutec, a fine stone alone is usually no longer sufficient.

In this case:
If the cutting zone has become too thick overall, the scythe should be peened again to create a fine, elastic cutting edge.
If there are significant wear marks or small chips on the cutting edge, it may be advisable to first pre-grind with a coarser whetstone (e.g. Zische scythe whetstone coarse or medium) and then finish with the Rozsutec.

A coarse whetstone can help remove damage, but does not replace peening as the fundamental preparation of the cutting zone.

Note on Grit of Natural Whetstones

Natural whetstones consist of rock with the finest, most homogeneous structure possible to make them suitable for grinding. However, natural whetstones differ from piece to piece, so structure, hardness, and material removal can vary – even within a single deposit.
Unlike artificial grinding stones, the “abrasive grains” are not sieved to a defined grain size. Therefore, no exact, standardized grit number can be specified for natural whetstones. Specifications such as “600–800 grit” are always only rough approximations for natural whetstones and can be slightly misleading in direct comparison to synthetic stones.
We therefore deliberately avoid specifying a concrete grit number and instead describe the grit of our natural whetstones with terms such as medium-fine or fine.

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Would You like to learn more about proper honing?

In our article “Sharpening the Scythe – Peening and Honing” you’ll find useful knowledge & practical tips on peening & honing.

find suitable scythe blades that match this whetstone