Ingco SDS Plus Masonry Bit bosch professional and Canadian Standards Association (CSA) 631582071915 and Canadian Standards Association (CSA) Stable and accurate speed control is achieved with encoder motor and digital speed indicator Ingco SDS Plus Masonry Bit Model Size DBH1210602 6X160MM DBH1210802 8X160MM DBH1211002 10X160MM DBH1211201 12X160MM DBH1211401 14X160MM DBH1211601 16X160MM DBH1210603 6X210MM DBH1210803 8X210MM DBH1211003 10X210MM DBH1211202 12X210MM DBH1211402 14X210MM DBH1211602 16X210MM DBH1211801 18X210MM DBH1212001 20X210MM DBH1210805 8X310MM DBH1211005 10X310MM DBH1211204 12X310MM DBH1211404 14X310MM DBH1211604 16X310MM DBH1211803 18X310MM DBH1212003 20X310MM DBH1212202 22X310MM DBH1212402 24X310MM DBH1210806 8X450MM DBH1242805 28X540MM DBH1243005 30X540MM DBH1243208 32X1000MM