Drill America D/ARSD3/8X37/64 37/64 High Speed Steel Reduced Shank Drill Bit

High-speed steel (HS) tools are generally well-suited for a wide range of general-purpose applications, providing a balance of hardness and toughness that promotes wear resistance. These drills are ground to a 118-degree point and made of HS steel, expanding the size range capacity that can be accommodated by a portable drill chuck. The common flute and overall length help minimize adjustment requirements during tool changes.

Precision grinding ensures a high degree of concentricity between the shank and body diameter of these drills, making them ideal for use on low to medium tensile strength materials. The black and bright finish enhances the aesthetic appeal of the tools.

The black oxide treatment applied to these drills serves to improve lubricity and create small pockets on the tool surface. These pockets help hold coolant near the cutting edge, which can contribute to enhanced performance.

The round shanks of these tools allow for use with a broad variety of toolholding systems, offering flexibility in application. When operated in a counterclockwise (right-hand cut) direction, the spiral fluted design of the tools helps evacuate chips up and out of the cut, reducing the risk of clogging.

Ultimately, the combination of HS steel construction, precision grinding, and specialized surface treatments make these drills well-suited for drilling in low to medium tensile strength materials, providing a balance of hardness, toughness, and cutting performance. The design features, including the common flute, overall length, and round shanks, further contribute to the versatility and user-friendliness of these tools, facilitating efficient tool changes and compatibility with diverse toolholding systems.

product information: