... ,Core drill bit,Straight flute drill,Spade drill bits,Long length drill,deep-hole drilling,special drill ... arrange from 0.5-22mm,Specifications custom-made for you,whatever style tool you need,you can ... count on ZLY to deliverMachining: For metal working(such as Aluminum,copper,steel,stainless ... Please Feel free to contact us for more informations Long flute carbide drill bit for aluminum