Triumph Twist Drill Co. produces high quality American-made jobber drill bits suitable for precision drilling applications. This 31/64-inch fractional drill bit delivers reliable performance across a range of materials and is an essential tool for any gunsmith or precision machining operation.
The bit features a 118° point, High Speed Steel construction, bright finish, and measures 5-7/8″ overall length with a 4-3/8″ flute length. The .4844 decimal equivalent diameter makes it ideal for use in aluminum, aluminum alloys, bronze (soft and medium), wood, and plastic. The jobber length profile provides excellent balance between versatility and control, making it suitable for both hand and machine drilling.
this Triumph Twist Drill bit delivers the precision and durability you expect from an industry-leading manufacturer. Triumph Twist Drill has manufactured high-quality cutting tools for over 50 years, with founder Harry Beck setting out to provide customers with a product the drill industry had been lacking since 1952.
