Professional drill set, 230 pieces

PROFESSIONAL DRILL BIT SET  230 PIECES ; DESCRIPTION: The drill bits are made of a strong and very heat-resistant steel alloy containing about 5% cobalt. This allows you to drill materials up to max. 900N/mm². So drilling steel, cast iron, wood and plastic will not be a problem. The titanium-coated surface ensures even greater resistance to wear and corrosion. The set includes: 20 x drill bits 1 / 1.5 / 2 / 2.5 / 3 mm 11 x drill bits 3.5 / 4 / 4.5 / 5 / 5.5 / 6 / 6.5 / 7 / 7.5 / 8 mm 5x drill bits 8.5 / 9 / 9 mm metal. case