Dormer High Speed Cobalt Drill Bit, 3.5 mm Shank Size, Spiral Flute, 10 Flutes, 112mm Overall Length A9403.5

Dormer A9403.5 is a high speed cobalt drill bit engineered for precision drilling with a 3.5 mm shank size and 112mm overall length. Designed to provide exceptional performance in industrial, mechanical, and manufacturing applications, this drill bit excels in machining deep holes in diverse materials.

Constructed from premium high speed cobalt, it ensures excellent wear resistance and prolonged tool life. The drill bit features 10 spiral flutes with a parabolic design, facilitating rapid chip evacuation and enabling drilling depths up to ten times the diameter without requiring pecking interruptions.

The bright, uncoated finish with a cylindrical shank ensures secure fitting in drill chucks. Its 130° special drill point angle delivers superb centering capability and reduced thrust requirements, resulting in enhanced accuracy and less operator fatigue.

With a thicker web construction, this bit dramatically lowers the chance of breakage during heavy-duty drilling tasks. The right cutting direction optimizes hole creation, making it suitable for applications across mechanical workshops, manufacturing units, and fluid power tool sectors.

High speed cobalt construction for durability and performance. 10 spiral parabolic flutes for fast chip evacuation and deep hole drilling. Overall length of 112mm with 73mm drilling length. Cylindrical shank with bright, uncoated finish.

130° drill point angle for excellent centering and reduced thrust. Compliant with DINSI standards ensuring quality and consistency.

This Dormer drill bit is ideal for precision mechanical drilling, metal fabrication, and maintenance applications. It is particularly valuable for industrial, laboratory, and construction environments requiring high-performance, reliable tooling.

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