D6R Drag Bits
Mills Machine manufactures an extensive line of D6R bolt-on tooth drag bits that can be made for a specific hole size or can be enlarged with bolt on reamer blades (see example below). These bits start at 12 1/4″ diameter and can be made as large as you need. The basic bit is designed for […]
Drag Bit Blades – Step Type for NW6R and W6R
Drag Bit Blades – Step Type for NW6R and W6R Description Part # Lbs. Kg Standard Duty 3/4″ Thick Weld-on replacement blades for NW6R and W6R Step Type Drag Bits are made with 3/4″ Steel Plate and 3/16″ Carbide. Other shapes and styles are available. *5 1/2″ – 12 1/4″ Inserted Wings fit 3 1/2″ […]
Forged Chevron Drag Bits – 3 Wing
Forged Chevron Drag Bits – 3 Wing Description Part # Lbs. Kg AW Pin 1 7/8″ (48mm) Chevron Drag Bit, AW Pin DB178CAWP 2 0.9 2″ (51mm) Chevron Drag Bit, AW Pin DB200CAWP 2 0.9 2 1/8″ (54mm) Chevron Drag Bit, AW Pin DB218CAWP 2 0.9 2 1/4″ (57mm) Chevron Drag Bit, AW Pin DB214CAWP […]
Forged Step Drag Bits – 3 Wing – Pin
Forged Step Drag Bits – 3 Wing – Pin Description Part # Lbs. Kg 4 Thd N Rod Pin 2 3/4″ (70mm) Step Drag Bit, 4 Thd N Rod Pin DB234S4N – – 2 7/8″ (73mm) Step Drag Bit, 4 Thd N Rod Pin DB278S4N – – 3″ (76mm) Step Drag Bit, 4 Thd N […]
NW6R Chevron Drag Bits – 3 Wing – Heavy Duty
NW6R Chevron drag bits are heavy duty with 1″ thick blades and 1/4″ carbide. The Chevron (Apex) style drag bit does not penetrate as fast as the step type, however it will cut harder formations such as medium soft to medium hard sand rock and shale. Description Part # Connection Lbs. Kg NW6R Chevron – […]
NW6R Drag Reamer – Heavy Duty
The NW6R Drag Reamer (Holeopener) is designed to fit between an NW6R Connector and an NW6R Drag Bit Head. The NW6R Drag Reamer can be used with any size NW6R Head and is available with 3 or 4 blades. The Heavy Duty Reamer has 1″ thick blades with 1/4″ carbide inserts. Other shapes and sizes […]
NW6R Drag Reamer – Standard Duty
The NW6R Drag Reamer (Holeopener) is designed to fit between an NW6R Connector and an NW6R Drag Bit Head. The NW6R Drag Reamer can be used with any size NW6R Head and is available with 3 or 4 blades. The Standard Duty Reamer has 3/4″ thick blades with 3/16″ carbide inserts. Other shapes and sizes […]
NW6R Drag Stabilizers
The NW6R Drag Stabilizer is designed to fit between a NW6R Connector (top) and a NW6R Drag Bit Head (bottom). The NW6R Drag Stabilizer can be used with any size NW6R Head and is available with 3 or 4 blades. The standard configuration has 3 – 3/4 inch thick blades with tungsten carbide hard faced […]
NW6R Step Drag Bits – 3 Wing – Heavy Duty
NW6R Heavy Duty Step Drag Bits have 1″ thick blades and 1/4″ thick carbide inserts. This bit is designed for rapid penetration in soft to medium formations (clay, sand rock or shale). The thicker blades and carbide inserts extend the life of the bit. The NW6R heads and connectors listed below are what we consider […]
NW6R Step Drag Bits – 3 Wing – Semi Heavy Duty
NW6R Standard Duty Step Drag Bits have 3/4″ thick blades and 3/16″ thick carbide inserts. This bit is designed for rapid penetration in soft to medium formations (clay, sand rock or shale). The NW6R heads and connectors listed below are what we consider to be stock standard sizes, but we can custom manufacture any size that you need! The heads can be furnished with a stopper ring to provide a shouldered thread connection.