Bosch carbide drill multi purpose set straight shank bosch 2607010546 these carbide drill bits from bosch are suitable for all materials and have straight shanks 7 piece robust line cyl 9 multi construction multi purpose drill bit set 5 5 5 6 6 7 8 10 mm bosch 2607010546 carbide drill multi purpose set straight shank 5 to 10mm 7 pcs