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| Country of Origin | France |
|---|---|
| Brand | Dormer |
| Material | HSS |
| Model | A1085.5 |
| Overall Length | 93mm |
| Shank Type | Cylindrical/Straight |
| Shank Size | 5.5mm |
| Number of Pieces | 10 |
| Flute Type | Helical |
| Standards/Approvals | ISO 235, DIN 338 RN, BS 328 |
| Number of Flutes | 5 |
| Cutting Direction | Right |
| Drill Point Angle | 135° |
| Drilling Length | 57mm |
| RS PRO HSS, 93mm Overall 5.5 mm 10Brand | RS PRO |
| Dormer HSS Jobber Drill Bit, 5.5mm Diameter, 93 mm OverallBrand | Dormer |
Dormer A1085.5 high-speed steel (HSS) jobber drill bit set consists of 10 pieces of 5.5mm diameter drill bits each having an overall length of 93mm and drilling length of 57mm. These drill bits feature a 135° point angle and split-point design for excellent self-centring accuracy and high-quality hole production.
Manufactured from premium tempered HSS steel, they are optimized for machining stainless steel, cast iron, aluminium alloys, plastics, graphite, and other materials, while being unsuitable for masonry applications. Their right-hand cutting direction and 5 helical flutes facilitate efficient chip removal and smooth drilling operations.
Dormer drill bits comply with international standards ISO 235, DIN 338 RN, and BS 328, guaranteeing consistent quality and performance. The blue surface treatment provides enhanced corrosion resistance and reduced friction during use.
These jobber drill bits are suitable for both hand and machine drilling, making them versatile tools for industrial and workshop applications including mechanical engineering, construction, metal fabrication, and maintenance tasks.
Made from premium high-speed steel (HSS) for durability and long tool life. Features 5 helical flutes for efficient cutting and chip removal. Split-point design with 135° point angle for self-centring and accurate positioning.
Cylindrical straight shank of 5.5mm for secure fitting in machines and hand drills. Suitable for drilling stainless steel, cast iron, aluminium alloys, plastics, and more. Complies with ISO 235, DIN 338 RN, and BS 328 standards.
Right-hand cutting direction optimized for smooth drilling. Drilling length of 57mm providing precise depth control. Blue surface treatment enhances corrosion resistance and reduces friction. Manufactured in France ensuring high quality industrial performance.
This Dormer drill bit set is essential for precise, efficient drilling in industrial, manufacturing, and maintenance environments. Explore further Dormer cutting tools and Drill Bits on EnvMart for advanced machining solutions.
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