Bosch glass and tile bit set straight shank bosch 2608587170 these glass and tile bits from bosch have straight shanks 5 piece cyl 9 ceramic tile drill bit set 5 5 6 0 7 0 8 0 10 0 mm bosch 2608587170 glass and tile bit set 55 to 10mm cyl 9 straight shank 5 pcs