G2 End mills parameters GB205GBL2G2CS2GB305G2CSH3 GB405GBL4G2CS4G2WS2G2WSH3 G2WS4G2210 – G2211G2212G2310 – G2311 – G2312G2410 – G2411 – G2412 – G2413 G2CSHMG2CSFRG2WSFRG2CS2R G2CS4RG2CL4RGB255G2CSB2 G2CSB4G2250 – G2251