Amtech F1730 5 Piece hex Shank Masonry Drill bit Set

Amazon

DURABLE: These tough hex shank masonry drill bits have hardened A3 alloy tool steel tips VERSATILE: With 6mm (0.25") hex shanks, the bits are ideal for use with cordless power tools SIZES: The set includes sizes 4mm, 5mm, 6mm, 8mm and 10mm, Weight: 0.2645547144 Pounds, Manufacturer: DK Tools

Zoro Tools

DURABLE: These tough hex shank masonry drill bits have hardened A3 alloy tool steel tips. VERSATILE: With 6mm (0.25") hex shanks, the bits are ideal for use with cordless power tools. SIZES: The set includes sizes 4mm, 5mm, 6mm, 8mm and 10mm.

Cazaar

Amtech's 5 piece masonry drill bit set has hardened A3 alloy tool steel tips. The set includes sizes 4, 5, 6, 8 and 10mm with 1/4" hex shank, ideal for use with cordless power tools.