ALPEN SDS MAX DRILL BIT 920X800 40MM ALP89440Alpen SDS MAX HAMMER DRILL BITS Size: 40. 0 x 920 800 mm Packaged: Qty 1 Range of application: High efficiency drill bit for heavy duty SDS max hammer drilling of concrete, natural stone, masonry. Strengths Robust Highly resistant carbide tip High performance Vacuum hardening Hammer drilling into concrete, natural stone, masonry Efficient Deeper Precise Alpen drill bits are manufactured in Austria. Alpen SDS MAX HAMMER DRILL BITS Part No. Diameter mm