Tools for Finishing Selection Guide Stick Grindstones
Features of Stick Grindstones
| Model Number | Color | Coolant Type | Dry Type | Particle Size | Features |
| EXSC | Blue Gray |
○ | ○ | #120 ~ #2000 | It is a grindstone that uses C abrasive grain. It has low friction and can obtain an even surface finish with press type, aluminum, and copper polishing and excels at polishing. |
| SPSC | Yellow | ○ | x | #120 ~ #1000 | It is a grindstone with sulfur impregnated into the WA grindstone. It has good grinding functionality and a clean surface finish. It is also excellent at light grinding. |
| KKSC | Dark Pink |
○ | ○ | #120 ~ #1000 | It is a grindstone with special resin impregnated into the WA grindstone. It can be used wet or dry. It is especially adept at SKD and SKH material grinding as well as curved surface processing. It is optimal for medium finishing to finishing. |
| RPSC | Brown | ○ | x | #120 ~ #1000 | It is a grindstone with general resin impregnated into the WA grindstone. It is for coarse to medium finishing after rib processing and electrical discharge machining. It is a softer type compared to EDSC. |
| EDSC | Brown | ○ | x | #120 ~ #1000 | It is a grindstone with high functionality resin impregnated into the WA grindstone. It is excellent for coarse to medium finishing related to electrical discharge machining (hardening layer) after machining. It is more resistant to friction compared to RPSC. |
| HGSC | Brown | ○ | ○ | #150 ~ #1000 | It is a grindstone with resin impregnated into the WA abrasive grain. It does not clog even when used dry and shows excellent grinding capabilities even if oil is on the work, contributing to the shortening of work hours. |
| RFSC | Dark Pink |
○ | ○ | #80 ~ #220 | It is a grindstone that uses PA abrasive grains. It is excellent for rough finish processing, wet or dry, and has excellent grinding capabilities and abrasion resistance. |
| PKSC | Blue Gray |
○ | ○ | #280 ~ #1000 | It is a grindstone that uses C abrasive grain. It is a pouring mold type that uses carborundum with few bonds that cause scratches, and finishes with a high abrasive grain rate. It can be used wet or dry. |
Features of Abrasive Grains
| Type | Abrasive Grain Types | Material Types | Features |
| Alumina Abrasive Grain (Alundum) |
A Abrasive Grain | Brown Alumina Polishing Materials | A chunk of solidified alumina from smelting reduction of alumina ore is pulverized and the grains are regulated. It is made from corundum crystals and non-crystal parts that contain a small amount of titanium oxide, and is very tough. |
| PA Abrasive Grain | Pink Alumina Polishing Materials | A chunk solidified after smelting and reducing alumina raw materials with a small amount of chromium oxide was pulverized and the grains were regulated, made up of pink corundum crystals. It is tougher than WA abrasive grain due to the addition of chromium oxide. | |
| WA Abrasive Grain | White Alumina Grinding Materials | A chunk solidified after smelting and reducing high purity alumina was pulverized and the grains were regulated, made up of pure white corundum crystals. It is not as tough as A abrasive grain but has excellent crushing capabilities. | |
| Silicon Carbide Abrasive Grain (Carborundum) |
C Abrasive Grain | Black Silicon Carbide Grinding Tools | Ingots from reacting silicon oxide raw materials and carbon materials were pulverized and the grains were regulated, made up of black silicon carbide crystals. It is considerably less tough than A and WA abrasive grain but it is extremely hard. |
Table of Hardness of Major Steel Materials and Corresponding Stick Grindstones (Reference)
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