• High-quality tempered steel body.• 2 precicely ground HM teeth (Z2).• Packed in a plastic box.Use: drilling and chamfering of natural wood, DTD, MDF, plastics and LTD.May be clamped onto the shank of a drillFor drills with 4 flutes. Use with the following drills: 306-307-308-309-373-374-375-338-339-340-341-342-343-344-346-352-353