Mesee 6 Piece Drill Tap Combination Bit Set - Imperial 1/8 to 3/8

The Mesee 1/4-Inch Hex Shank HSS Countersink Tap Drill Bit Set is a versatile and efficient tool for various drilling, tapping, and deburring tasks. This set features several key benefits that make it a valuable addition to any workshop.

Firstly, the set is designed with a back-tapered feature beyond the tap, which helps prevent thread damage from over-drilling. This innovative design ensures that the threads are protected, even when the drilling process is not executed with perfect precision.

Another standout feature of this set is the self-centering point, which eliminates the need for additional assistance in center drilling or center punching. This streamlines the drilling process, allowing users to achieve accurate and consistent results without the added step of pre-drilling a pilot hole.

One of the most remarkable aspects of this Mesee tap drill bit set is its ability to perform drilling and tapping simultaneously, in a single-step process. This one-step processing significantly improves the overall working efficiency, saving time and reducing the number of steps required to complete a task.

The versatility of this set is further enhanced by its multi-use capabilities. It can be used for a variety of applications, including opening holes, drilling, tapping, chamfering, and deburring/countersinking on soft metals, aluminum, copper, wood, and plastic. This versatility makes it a valuable tool for a wide range of projects and materials.

The spiral groove design within the processing thread ensures efficient chip removal and curling, providing a smooth and clean threading process through the holes. Users can also easily insert screws into the drilled holes, thanks to this thoughtful design.

Regarding the specifications, the Mesee tap drill bit set features a 1/4-inch hex shank, with imperial sizes ranging from 1/8 to 3/8 inches. The chamfer angle is 90 degrees, and the bits are made of high-speed steel (HSS), ensuring high hardness and rust resistance for extended durability.

It's important to note that the composite tap is best operated on a bench drill or a tapping machine. Users should also apply some oil before operating the tap to ensure a smoother process and extend the tap's lifespan. When using a hand drill, the thickness of the workpiece should be within 2 millimeters to prevent the tap from breaking, as hand drills may not always maintain a consistent vertical orientation and speed.

The Mesee 1/4-Inch Hex Shank HSS Countersink Tap Drill Bit Set is not suitable for use on stainless steel 304 or high-hardness metals. It is best suited for lower-hardness materials, with a maximum workpiece thickness of 5 millimeters for soft metals and 3 millimeters for soft metals.

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