Drill America DWD21J-LH-SET 21 Piece Left Hand Drill Bit Set

The Qualtech 21-piece 118-degree conventional point general-purpose drill bit set, featuring a left-hand helix for screw machine applications where spindles rotate counterclockwise, comes in a metal case. This drill bit set is designed for a variety of applications, with high-speed steel tools that offer a combination of hardness and toughness for wear resistance.

The black oxide treatment on the tools adds lubricity and creates small pockets on the surface that help to hold coolant near the cutting edge, enhancing the tool's performance. The round shanks on the drill bits allow for use with a wide variety of toolholding systems, providing flexibility in the workshop.

One unique feature of this set is the inclusion of reverse-flute drill bits, which run in the opposite (clockwise) direction from regular drill bits when making holes. This can be particularly useful for drilling out broken bolts.

The set covers a range of fractional sizes, from 1/16" to 3/8" in 1/64" increments, ensuring a comprehensive selection of drill bits for various tasks. The high-speed steel construction of the tools makes them suitable for a wide range of general-purpose applications, providing the necessary hardness and toughness for reliable performance.

In summary, the Qualtech 21-piece 118-degree conventional point general-purpose drill bit set offers a versatile and well-designed solution for a variety of drilling needs. The combination of features, including the left-hand helix, black oxide treatment, round shanks, and reverse-flute bits, make this set a valuable addition to any workshop.

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