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29pcs HSS Drill Bit Set Construction Concrete Drilling Inch Metric Sizes 5mm Diameter Fully Ground Enclosed Metal Box Coating

29pcs HSS Drill Bit Set Construction Concrete Drilling Inch Metric Sizes 5mm Diameter Fully Ground Enclosed Metal Box Coating

Подробная информация
Тип тренировки:
Твисфил
Использовать:
Металлическое бурение
Общая длина:
73~123 мм
Диаметр хвостовика:
1,5~6,5 мм
Тип хвостовика:
1/4 хвостовика
Выделить:

29-Piece Complete Set HSS Drill Bit

,

Fully Ground Design Twist Drill Bit

,

Enclosed Metal Storage Box High-Speed Steel Drill Bit

Характер продукции
29PCS HSS Drill Bit Set – Inch & Metric Sizes | Fully Ground | For Construction & Concrete Drilling | Metal Box
Product Overview

The 29PCS HSS Drill Bit Set is designed for construction and concrete drilling applications, offering both inch and metric sizes to meet international market requirements. Manufactured from high-speed steel (HSS) with a fully ground process, these drill bits deliver excellent cutting performance, accuracy, and durability.

Packed in a heavy-duty enclosed metal box, this set is ideal for professional contractors, workshops, and industrial users who require reliable and organized drilling solutions.

Key Features
  • 29-Piece Complete Set

    Covers commonly used inch and metric sizes, suitable for various drilling needs.

  • High-Speed Steel (HSS) Material

    Ensures high hardness, wear resistance, and stable performance.

  • Fully Ground Design

    Provides better concentricity, sharper cutting edges, and smoother drilling.

  • Suitable for Construction & Concrete

    Ideal for drilling concrete, masonry, brick, and general construction materials.

  • Protective Coating

    Improves corrosion resistance and extends tool life.

  • Enclosed Metal Storage Box

    Strong, durable, and easy to organize and transport.

Specifications
  • Material: High-Speed Steel (HSS)
  • Process: Fully Ground
  • Sizes: Inch & Metric Mixed Sizes
  • Common Diameter: 5mm (included)
  • Coating: Surface coating for wear and corrosion resistance
  • Package: Enclosed metal box
  • Quantity: 29 PCS / Set
Applications
  • Construction drilling
  • Concrete and masonry work
  • Brick and wall drilling
  • Industrial and workshop use
  • Maintenance and installation projects
Advantages
  • Wide size coverage for global markets
  • High precision drilling with reduced vibration
  • Long service life and consistent performance
  • Professional packaging for safe storage and transport
29pcs HSS Drill Bit Set Construction Concrete Drilling Inch Metric Sizes 5mm Diameter Fully Ground Enclosed Metal Box Coating 0
Product Advantages
  • Specially designed for aluminum alloys: Optimized blade angle prevents aluminum chips from sticking
  • External cooling support: High cooling efficiency prevents thermal deformation and tool wear
  • Superior chip removal: Large tooth pitch and deep chip removal grooves enable smoother cutting
  • High wear resistance: AMG hard alloy forging balances sharpness with extended service life
Frequently Asked Questions
Q: What should I do if aluminum alloy easily sticks to the tool?
A: The AMG aluminum file features a specially designed tooth profile combined with external cooling to effectively prevent chip sticking.
Q: Can it be used continuously for extended periods?
A: With its external cooling structure, the tool supports sustainable, stable operation in high-frequency processing environments.