TECHNICAL CHARACTERISTICS
Sigma "FAST" drill bits are perfect for drilling both dry and wet holes.
Excellent for porcelain stoneware, marble, granite, single-fired tiles, terracotta, and clinker.
Hexagonal shank (drill) for diameters from 6 to 12 mm.
M14 shank (angle grinder) for diameters from 20 to 70 mm.
Lifespan: Tested on 1 cm thick porcelain stoneware, if used correctly, they can drill 60 holes.
