The diamond honing stones are made of synthetic diamond and metal powder through process of mixing, pressing, sintering and grinding. High grinding efficiency, small wearing, economic and convenient to use.
The diamond honing stones manufactured are suitable for rough honing, plateau honing, slide honing, helical slide honing etc. The cross hatches after honing process will meet the automobile emission requirements of China 5, China 6 and Euro 5 Euro 6, making more efforts for decarbonizing target.




K Series Honing Stones | |||||||||||
Honing Unit | K3 | K4 | K5 | K6 | K8 | K10 | K12 | K16 | K20 | AK20 | AK30 |
Stone Length | 15 | 15 | 18 | 19 | 32 | 32 | 45 | 57 | 63 | 63 | 63 |
Bore diameter | 2.5-3 | 3-4 | 4-5 | 5-6 | 6-8 | 8-9.5 | 9.5-13 | 13-16 | 16-19 | 19-32 | 32-40 |
B Series Honing Stones | ||||||||
Honing Unit | B8 | B10 | B12 | B14 | B16 | B20 | AB20 | AB30 |
Stone Length | 47 | 47 | 60 | 70 | 85 | 95 | 95 | 95 |
Bore diameter | 6-8 | 8-9.5 | 9.5-13 | 9.5-13 | 13-16 | 16-19 | 19-32 | 32-40 |
L Series Honing Stones | |||||||||
Honing Unit | L3 | L4 | L5 | L6 | L8 | L10 | L12 | L16 | L20 |
Stone Length | 25 | 25 | 32 | 35 | 57 | 57 | 88 | 114 | 114 |
Bore diameter | 1.9-3 | 3-4 | 4-5 | 5-6 | 6-8 | 8-9.5 | 9.5-13 | 13-16 | 16-32 |
General Size | ||||||||
Grit | 50/60 | 60/70 | 70/80 | 80/100 | 100/120 | 120/140 | 140/170 | 170/200 |
FEPA | D301 | D251 | D213 | D181 | D151 | D126 | D107 | D91 |
Grit | 200/230 | 230/270 | 270/325 | 325/400 | W40 | W28 | W20 | W14 |
FEPA | D76 | D64 | D54 | D46 | M63 | M40 | M25 | M16 |
iSharp Abrasives Tools Science Institute. Is a leading grinding solutions provides from 1991. We have been in this abrasive filed more than 20 years. We put a lot of time and energy into creasing tailored abrasive solutions to meet your needs and exceed your expectations.Our products include the cutting disc production line, coated abrasive belt conversion line, flap disc production line and mounted flap wheel production line. Expect these, we also have different products, such as the cutting disc, flap disc, oil stone and grinding wheel.
Our products has exported to many countries, such as Russia, America, Germany, Italy, Ukraine, Singapore, Brail, Mexico, Poland, And so on. Besides, we also have built business relationship with some famous company in this field, such as Klingspor, Deerfos, Sunmight, CGW and so on. Having been innovating the cutting disc and grinding wheel industry for over 15 years, you can count on our products to perform consistently.



If you use Sunnen tools now, please give the code number. If new cases, please provide the workpiece drawing, material & hardness, stock removal amount, required surface quality, honing machine name and type. We will recommend the suitable specifications.