• For masonry, concrete, marble, granite etc
• PGM certified
High durable carbide
• Good lifetime
• Wear resistance
Vacuum brazing
• Avoid cold solder joint
Cold rolling spiral flute
• No cutting marks,maximum guarantee drill performance
• Strengthen drill lifetime thanks to rolling at one go
Range
Metric:
Diameter: 4mm–17mm
Working length: 50mm–950mm
Total length: 110mm–1000mm
Inch:
Diameter: 5/32"–5/8"
Working length: 2"–38"
Total length: 4"–40"
