Roller Cone Horizontal Hole Openers
Mills Machine has over 45 years of experience in manufacturing our custom designed horizontal roller holeopeners, which are, available in sizes from 6″ to 120″ (150 mm to 3 Meters) and larger. We custom manufacture these holeopeners to meet your specific requirements. These ruggedly constructed units are made from 4142 heat treated alloy steel and […]
Horizontal Roller Rock Head (HRR)
Mills Machine has been custom manufacturing horizontal hard rock drilling bits for over 20 years. We make two types of HRR bits: a Free Bore and Casing Push type. Both of these designs feature steel tooth or tungsten carbide button roller cone bit segments with sealed bearings. We offer new or economical reconditioned roller cones […]
Drag Type Horizontal Reamer
Mills Machine also manufacturers large drag (blade) Hole Openers or Backreamers for horizontal drilling using replaceable bolt-on teeth in a step tooth or chevron apex tooth construction or a combination of teeth and bullet bits. This type of reamer is designed for soft to medium formations and can be made in any size with any […]
Bullet Type Horizontal Hole Openers
Truly one of the most versatile bits that we manufacture is the Bullet Type Reamer. Designed for hard compacted clay to soft limestone this rugged bit with replaceable carbide cutters offers the most capability and convenience for the money. It is a very aggressive cutting bit that will increase your production while reducing your overhead.