Japanese Waterstones: Naniwa Coarse Stones
These very coarse to coarse grained grinding stones meet the needs of many workers for stones that can remove a lot of metal quickly. They are conceived for grinding out chipped or very dull blades, and for roughing out a new edge geometry. We offer two product lines based on different requirements for different kinds of sharpening:
- The C-Grain Series is made of silicon carbide that is 96 % pure. This is a relatively soft type of stone compared to others we offer, and is used in Japan mostly for relatively thick irons and blades sharpened on one side that you can easily move over the stone using a lot of pressure. The C-Grain Series does not cut as aggressively as the GC-Grain Series. The C-Grain series can be recognized by its dark gray color.
- The GC-Grain Series is also made of silicon carbide, but with 99 % purity. The GC-Grain Series is harder than the C-Grain series because of the binder used and is designed for coarse work like chip removal and to change the edge geometry on relatively thin blades and those sharpened on both sides. Sharpening goes a little faster with these stones. The GC series can be recognized by its gray-green color. If you use these stones with thick irons or using a lot of pressure, they tend to wear relatively quickly.
NANIWA Coarse Stone Grain 36
C-Grain Series
Size: 205 mm x 50 mm x 25 mm
Order nr. 313210
Price ✱€ 15.90
C-Grain Series
Size: 205 mm x 50 mm x 25 mm
Order nr. 313210
Price ✱€ 15.90
NANIWA Coarse Stone Grain 60
C-Grain Series
Size: 205 mm x 50 mm x 25 mm
Order nr. 313211
Price ✱€ 15.90
C-Grain Series
Size: 205 mm x 50 mm x 25 mm
Order nr. 313211
Price ✱€ 15.90
NANIWA Coarse Stone Grain 120
C-Grain Series
Size: 205 mm x 50 mm x 25 mm
Order nr. 313212
Price ✱€ 15.90
C-Grain Series
Size: 205 mm x 50 mm x 25 mm
Order nr. 313212
Price ✱€ 15.90
NANIWA Coarse Stone Grain 220
C-Grain Series
Size: 205 mm x 50 mm x 25 mm
Order nr. 313213
Price ✱€ 15.90
C-Grain Series
Size: 205 mm x 50 mm x 25 mm
Order nr. 313213
Price ✱€ 15.90
NANIWA Coarse Stone Grain 46
GC-Grain Series
Size: 205 mm x 50 mm x 25 mm
Order nr. 313215
Price ✱€ 16.90
GC-Grain Series
Size: 205 mm x 50 mm x 25 mm
Order nr. 313215
Price ✱€ 16.90
NANIWA Coarse Stone Grain 80
GC-Grain Series
Size: 205 mm x 50 mm x 25 mm
Order nr. 313216
Price ✱€ 16.90
GC-Grain Series
Size: 205 mm x 50 mm x 25 mm
Order nr. 313216
Price ✱€ 16.90
NANIWA Coarse Stone Grain 220
GC-Grain Series
Size: 205 mm x 50 mm x 25 mm
Order nr. 313217
Price ✱€ 16.90
GC-Grain Series
Size: 205 mm x 50 mm x 25 mm
Order nr. 313217
Price ✱€ 16.90
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