Dormer High Speed Steel Helical Twist Drill Bit 1 in Size, 148mm Overall Length, Cylindrical Shank A1101/4

Dormer A1101/4 high speed steel helical twist drill bit offers a 148mm overall length with a cylindrical shank, providing reliable and precise drilling performance.

This drill bit is manufactured to meet rigorous DIN 340 RN, BS 328, and ISO 494 standards. It features a bright finish and a drill point angle of 118°, making it well-suited for applications involving steel and cast iron materials.

The bit includes 4 helical flutes that aid in efficient chip clearance, enhancing drilling speed and accuracy. The shank diameter of 6.35mm ensures compatibility with common drilling machines and holders.

Designed for industrial, mechanical, and manufacturing environments, this drill bit meets high operational demands. Its ability to drill up to 10 times the drill diameter before flute fouling enhances productivity and tool life in metalworking applications.

Made from durable high speed steel for enhanced cutting performance. Features 4 helical flutes for efficient chip removal. Cylindrical shank with bright finish for secure chuck grip. Drill point angle of 118° for versatile steel and cast iron drilling.

Complies with DIN 340 RN, BS 328, and ISO 494 standards. Suitable for drilling up to 10 times the diameter without fouling. Shank size measures 6.35mm ensuring compatibility with standard holders.

This Dormer drill bit is ideal for use in industrial tool kits, metal fabrication workshops, construction sites, and mechanical maintenance tasks where precision metal drilling is required.

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