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Twist drills are the most common and easiest way to put a hole in steel, wood or other non-ferrous materials with a drill bit but with so many options to choose from it is important that you use the correct one for your specific application.
Our primary focus is to manufacture all kinds of twist drills but it has different types on which we work more effectively. These are jobber Drills, Stub Drills, Step Drills, Parallel Shank Long Series Drills, Taper Shank Drills and Taper Shank Long & Extra Long Series Drills.
Twist drills are rotary cutting tools that normally have two cutting edges and two flutes which are grooves formed in the body to provide cutting lips, to permit the removal of chips and to allow coolant or cutting fluid to reach the cutting action. They are identified by the:
Choosing the proper design for the application particularly in high volume applications can be a cost saving decision. High speed steel is the general purpose tool and fits many short run and maintenance jobs. Cobalt twist drills provide longer life and can be run at higher speeds, while carbide drills are the choice when conditions of speed, feed and rigidity are optimum. Coatings can add life to all of these tools.