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Imperial HSS Left Hand Twist Drills, ASME/ANSI B94.11M Standard

◆ For super abrasive resistance in tough metals
◆ Heavy duty spiral flute design produces faster chip ejection
◆ 135-degree split point reduces feed pressure for easier penetration without work hardening
◆ Material: HSS, HSS-E.Surface finish: bright finish, black oxide, TiN coated
◆ Shorter cutting lips reduce torque for drilling in high tensile strength materials. Ideal for use with screw extractors.

Variants

Diameter

Flute Length

Material

Description
Advantages
Applications

◆ For super abrasive resistance in tough metals
◆ Heavy duty spiral flute design produces faster chip ejection
◆ 135-degree split point reduces feed pressure for easier penetration without work hardening
◆ Material: HSS, HSS-E.Surface finish: bright finish, black oxide, TiN coated
◆ Shorter cutting lips reduce torque for drilling in high tensile strength materials. Ideal for use with screw extractors.

Left-hand helix for counterclockwise drilling and broken screw removal. Ideal for use with screw extractors.

High tensile strength materials

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