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Dormer High Speed Steel Straight Shank Extra Length Drill Bit 8 mm Shank Size 250 mm Overall Length A1258.0X250

Category Drill Bits Brand Dormer Condition New

Specifications

Country of Origin France
Brand Dormer
Material High Speed Steel
Model A1258.0X250
Finish Steam Tempered (Steam Oxide)
Overall Length 250mm
Shank Type Cylindrical/Straight
Shank Size 8mm
Drill Bit Size 8mm
Flute Type Helical
Standards/Approvals BS 328
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RS Stock No. 728-7285Brand: DormerManufacturers Part No.: A1258.0X250IMPA: 630415
Number of Flutes 10
Cutting Direction Right
Drill Point Angle 118°
Drilling Length 200mm

Key Features

  • Manufactured from high speed steel for enhanced durability.
  • Features 10 helical flutes to improve chip removal.
  • Steam tempered finish provides increased wear resistance.
  • Cylindrical/straight shank type suitable for general machining.
  • Drill point angle of 118° ensures optimal cutting performance.
  • Designed for right-hand cutting direction applications.
  • Complies with BS 328 standards for quality assurance.
  • Capable of drilling long and deep holes efficiently.

Product Description

Dormer A1258.0X250 High Speed Steel straight shank extra length drill bit with an overall length of 250 mm and shank size of 8 mm is designed for demanding machining processes requiring extended reach. This drill bit is constructed from durable high speed steel, making it suitable for a variety of materials including steel and cast iron.

The drill features 10 helical flutes for efficient chip evacuation during drilling. Its steam tempered finish (steam oxide) enhances wear resistance and prolongs tool life, making this bit ideal for high-performance industrial and manufacturing applications. The right-hand cutting direction and a 118° drill point angle optimize the cutting action for precise and clean hole making.

Designed in compliance with BS 328 and DIN 340 RN standards, it is recommended for general machining, fluid power, and tool applications where long reach and deep drilling are essential. The cylindrical or straight shank allows for secure fitting in drill chucks and machines. The drilling length of 200 mm supports deep hole drilling, suitable for interrupted peck drilling techniques.

This high quality drill bit is manufactured in France, ensuring stringent quality controls and reliability for users in mechanical, construction, and industrial tool sectors. It is ideal for workshop, laboratory, and production line use in sectors like automotive, aerospace, and general engineering.

Manufactured from high speed steel for enhanced durability. Features 10 helical flutes for effective chip removal. Steam tempered finish improves wear resistance. Cylindrical/straight shank perfect for general drilling machines.

Right-hand cutting direction with 118° point angle. Complies with BS 328 standards for assured quality. Long drilling length suitable for deep and interrupted drilling. Ideal for machining steel, cast iron, and other metals.

Overall length 250 mm with 8 mm shank size. Made in France with industrial quality assurance. Explore more Dormer Drill Bits and accessories for industrial and manufacturing applications on EnvMart.

Dormer High Speed Steel Straight Shank Extra Length Drill Bit 8 mm Shank Size 250 mm Overall Length A1258.0X250
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Frequently Asked Questions

The overall length of this drill bit is 250 mm.

It is manufactured from high speed steel, which enhances its durability.

The shank size of this model is 8 mm.

This drill bit features 10 helical flutes for effective chip removal during drilling.

The drill point angle is 118°, optimizing the cutting performance.

The drilling length is 200 mm, suitable for deep hole drilling applications.

It complies with BS 328 standards for quality assurance.

This drill bit is designed for right-hand cutting direction applications.

It is manufactured in France, ensuring stringent quality controls.

The drill bit has a cylindrical or straight shank type, suitable for general machining.

It is designed for general machining, fluid power, and tool applications requiring long reach and deep drilling.

The drill bit features a steam tempered finish, which improves wear resistance.

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