Bosch carbide twist drill concrete straight shank bosch 2608597698 p these carbide twist drills from bosch are suitable for drilling in stone concrete and masonry p p cyl 3 concrete drill bit 10 x 550 x 600 mm d 9 2 mm pack of 1 p bosch 2608597698 carbide twist drill concrete cyl 3 10 x 600mm straight shank