Brazed Carbide Tools

Solid Carbide Tch Double Margin Long Drills

Solid Carbide Tch Double Margin Long Drills

Features

  • Accusharp Drills stays on center
  • It is highly Water-Resistant helping to maintain hole size accuracy
  • Cutting Edge and special flute geometry to promote smooth chip evacuation.
  • Accusharp Drill powers the cutting resistance and power
    consumption chips are broken into a compact shape for
    excellent chip disability to prevent jamming
  • Smooth curled chips are produced Good chip control is due to efficient chip breaking,

Application

  • Used for all Steel, Cast Iron and SS material
  • Aerospace Industry
  • Energy Industry

Description

Accusharp Solid Carbide TCH Double Margin Long Drills are advanced deep hole drilling tools engineered to deliver up to 80% reduction in cycle time compared to conventional drilling methods. Manufactured from premium solid carbide, these drills feature a double margin design, where the trailing margin burnishes the hole surface to achieve superior roundness, enhanced dimensional accuracy, and an excellent surface finish—often eliminating the need for secondary operations like reaming.

Enhanced with HSN2-based coating, these drills offer high hot hardness, enabling up to 30% higher cutting speeds while maintaining consistent tool life. The optimized four-margin land geometry further improves hole straightness, alignment, and stability, especially when drilling through cross holes. Ideal for CNC machining applications, these drills are widely used in automotive, aerospace, and precision engineering industries for high-performance and reliable deep hole drilling.

Frequently Asked Questions

 

Q1. What are double margin long drills used for?

Double margin long drills are used for deep hole drilling applications where high accuracy, smooth surface finish, and hole straightness are critical.

Q2. What is the advantage of a double margin design?

The double margin design improves hole roundness and surface finish by burnishing the cavity, reducing vibration, and minimizing the need for reaming.

Q3. How does HSN2 coating improve performance?

HSN2-based coating provides high hot hardness, allowing higher cutting speeds and maintaining consistent tool life even in demanding machining conditions.

Q4. What is the benefit of four-margin land geometry?

Four-margin lands enhance hole alignment and straightness, especially when drilling through cross holes or complex components.

Q5. Which industries use these drills?

These drills are widely used in automotive, aerospace, and precision engineering industries for high-performance CNC machining.