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Dormer High Speed Steel Drill Bit 1 in, 156mm Overall Length, 7mm Cylindrical Shank, 4 Flute Helical A1107.0
Specifications
| Country of Origin | India |
|---|---|
| Brand | Dormer |
| Material | High Speed Steel |
| Model | A1107.0 |
| Finish | Bright |
| Overall Length | 156mm |
| Shank Type | Cylindrical |
| Shank Size | 7mm |
| Drill Bit Size | 1in |
| Flute Type | Helical |
| Standards/Approvals | BS 328, DIN 340 RN, ISO 494 |
| Number of Flutes | 4 |
| Drill Point Angle | 118° |
| Drilling Length | 21mm |
Key Features
- High Speed Steel construction ensures durability and wear resistance.
- 4 helical flutes provide efficient chip removal during drilling operations.
- 118° drill point angle for precise cutting and reduced walking.
- Bright finish with steam tempered treatment improves wear resistance.
- 7mm cylindrical shank fits standard drill chucks securely.
- Drilling length of 21mm suitable for moderate depth holes.
- Manufactured according to BS 328, DIN 340 RN, and ISO 494 standards.
- Ideal for deeper hole drilling with reach up to 6x diameter.
Product Description
Dormer A1107.0 is a high speed steel (HSS) twist drill bit with an overall length of 156mm and a diameter of 1 inch (25.4 mm). It features 4 helical flutes and a 7mm cylindrical shank, designed for general machining applications requiring precision drilling.
This HSS drill bit is steam tempered to enhance wear resistance and is manufactured to conform with BS 328, DIN 340 RN, and ISO 494 standards, ensuring consistent quality and performance. The 118° point angle reduces walking and provides accurate hole positioning.
Its design allows drilling depths up to 6 times the drill diameter without frequent clearing of chips, making it suitable for deeper hole applications. The bright finish and cylindrical shank provide durability and easy compatibility with standard drilling machines.
This drill bit is recommended for use on steel, cast iron, and similar metals in industrial, mechanical, and manufacturing settings. It is a versatile tooling solution for precision engineering, metal fabrication, and machining tasks in construction and maintenance environments.
High Speed Steel construction ensures durability and wear resistance. 4 helical flutes provide efficient chip removal during drilling operations. 118° drill point angle for precise cutting and reduced walking. Bright finish with steam tempered treatment improves wear resistance.
7mm cylindrical shank fits standard drill chucks securely. Drilling length of 21mm suitable for moderate depth holes. Manufactured according to BS 328, DIN 340 RN, and ISO 494 standards. Ideal for deeper hole drilling with reach up to 6x diameter.
Recommended for steel and cast iron materials. Explore Dormer drill bits and related power tool accessories at EnvMart for precision engineering and machining needs.
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Frequently Asked Questions
The overall length of this drill bit is 156mm.
This drill bit has a diameter of 1 inch (25.4 mm).
It features a cylindrical shank with a size of 7mm, which fits standard drill chucks securely.
The drill bit has 4 helical flutes designed for efficient chip removal during drilling operations.
The drill point angle is 118°, which helps reduce walking and provides precise cutting.
It is recommended for use on steel, cast iron, and similar metals in industrial and mechanical applications.
The drilling length is 21mm, suitable for moderate depth holes.
It is manufactured according to BS 328, DIN 340 RN, and ISO 494 standards.
The drill bit features a bright finish with steam tempered treatment to improve wear resistance.
This model allows drilling depths up to 6 times the drill diameter without frequent clearing of chips.
It is suitable for general machining applications requiring precision drilling, particularly in construction and maintenance environments.
The drill bit is manufactured in India.
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