Extension Length Carbide Tip Multifunction Drill Bits for Concrete, Wood, Marble, Tiles etc (SED-MFD-EL)

Carbide tip Multifunction drill bits with gold flute coating for drilling stone,steel,glass,concrete,wood,plastic,brick and tiles

diameter size:5mm,6mm,8mm,10mm,12mm etc
extension Length:150mm,180mm,200mm or as per request.
sizes: 6*150mm,8*180mm,10*200mm,12*200mm are available.
Uses: used for drilling hard and brittle materials such as ceramic tiles, cement, ceramics, vitrified tiles, polished glazed tiles, iron sheets, plastics, wood, etc.
flute: black: double flutes, gold:wide H flute.
Note: 1. Adding water to cool down can prolong the service life.