using a twist drill bit

Introducing our high-performance twist drill bit, designed to meet the rigorous demands of professionals across various industries. Crafted with precision and durability in mind, this drill bit is engineered to effortlessly penetrate a wide range of materials, including wood, metal, and plastic. Its spiral fluted design ensures efficient chip removal, reducing heat buildup and enhancing drilling speed. The premium quality steel construction guarantees exceptional strength and longevity, making it ideal for heavy-duty applications. With its universal compatibility, this twist drill bit is an essential tool for professionals seeking accuracy, reliability, and efficiency in their drilling tasks.

Basic Angle of Twist Drill

β Helix Angle is the Angle between the most outer spiral line on the spiral groove of the Drill Bit and the axis of the Drill Bit after it expands into a straight line. Because the lead of each point on the spiral groove is the same, the spiral Angle of Twist Drill Bit Bunnings is different at different diameters. The spiral Angle is the largest at the outer diameter, and the smaller the spiral Angle is closer to the center. When the screw Angle increases, the rake Angle increases, which is beneficial to chip removal, but the bit stiffness decreases. The screw Angle of standard twist drill is 18° ~ 38°. For smaller diameter Twist Drill Bit Buy bits, the screw Angle should be set to a smaller value to ensure the Bit stiffness.

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