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Dormer Cobalt Steel Drill Bit, 1.5mm Shank, 40mm Overall Length, 10 Pieces A7771.5
Specifications
| Country of Origin | France |
|---|---|
| Brand | Dormer |
| Material | Cobalt Steel |
| Model | A7771.5 |
| Finish | Bronze |
| Surface Treatment | Bronze |
| Overall Length | 40mm |
| Shank Type | Cylindrical/Straight |
| Shank Size | 1.5mm |
| Number of Pieces | 10 |
| Flute Type | Helical |
| Standards/Approvals | DIN 338 |
| Number of Flutes | 4 |
| Cutting Direction | Right |
| Drill Point Angle | 135° |
| Drilling Length | 18mm |
| Dormer HSCo Jobber Drill Bit, 1.5mm Diameter, 40 mm OverallBrand | Dormer |
Key Features
- Manufactured from high-grade cobalt steel for durability.
- Features 4 helical flutes for efficient chip removal.
- Right hand spiral cutting direction with bronze finish.
- Drill point angle of 135° for precision drilling.
- Complies with DIN 338 standards for professional use.
- Suitable for use in mechanical, construction, and industrial applications.
- Shank type is cylindrical/straight for stable mounting.
- Drilling length measures 18mm for controlled depth.
Product Description
Dormer A7771.5 cobalt steel drill bit set consists of 10 pieces of 1.5mm shank diameter drill bits with an overall length of 40mm. These high-speed steel cobalt (HSCo) jobber drill bits are engineered for drilling higher tensile and tougher materials, ensuring enhanced durability and performance in demanding industrial environments.
Each drill bit features 4 helical flutes designed to facilitate efficient chip removal during drilling operations, improving cutting efficiency and reducing heat generation. The right hand spiral cutting direction and bronze surface treatment provide smooth and precise penetration through metals and alloys.
The drill bits have a cutting point angle of 135°, optimized for accuracy and long tool life, conforming to DIN 338 standards. The cylindrical/straight shank type allows for secure and stable fitting in compatible drill chucks, ensuring reliable operation.
The drilling length of 18mm affords controlled drilling depth, suitable for precise manufacturing, construction, mechanical, and fluid power tool applications. This set of 10 pieces enables batch operations, increasing productivity in workshop and industrial settings.
Manufactured in France, the Dormer cobalt steel drill bits uphold high standards of quality and consistency, suitable for professional craftsmen, machine shops, and industrial users requiring reliable drill performance on tough materials.
Made from superior cobalt steel material for enhanced toughness. Four helical flutes improve chip evacuation. Right hand spiral with bronze finish ensures smooth cutting. Drill point angle of 135° for precise results. Conforms to DIN 338 professional standards.
Cylindrical/straight shank for stable mounting in drills. Overall length is 40mm with 18mm effective drilling length. Set includes 10 pieces for multiple use cases. Ideal for mechanical, construction, and industrial drilling tasks.
Made in France for assured quality. Explore Dormer drill bits and related power tool accessories at EnvMart for industrial, mechanical, and manufacturing needs.
Explore more products in our Drill Bits & Parts category.
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Frequently Asked Questions
The overall length of the Dormer A7771.5 drill bit is 40mm.
This drill bit set has a shank size of 1.5mm.
The Dormer A7771.5 set includes 10 pieces of drill bits.
These drill bits are made from cobalt steel, which enhances their toughness and durability.
The drill point angle of the Dormer A7771.5 bits is 135°, optimized for precision drilling.
The drill bits feature a cylindrical/straight shank type for stable mounting in compatible drill chucks.
The effective drilling length of these drill bits is 18mm.
These drill bits comply with DIN 338 standards for professional use.
The Dormer A7771.5 drill bits feature 4 helical flutes for efficient chip removal during drilling.
These drill bits have a right hand spiral cutting direction.
The Dormer A7771.5 drill bits are manufactured in France.
These drill bits are suitable for mechanical, construction, and industrial drilling tasks.
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