Centering Solid Carbide Drill With 90 Degree Apex Angle , Metric Drill Bits

Basic Information
Place of Origin: CHINA
Brand Name: MMM
Certification: ISO 9001
Model Number: D5-D20
Minimum Order Quantity: 5 PCS
Price: USD
Packaging Details: Internal Plastic Box Packaging
Delivery Time: 5-15 Days
Payment Terms: L/C, T/T
Supply Ability: 5,000 PCS/Month
Detail Information
Material: Cemented Carbide Coating: Non-Coating
Material To Be Processed: P, M, K, N Standard: ISO, DIN, MMM
High Light:

hard metal drill bits


carbide step drill bit

Product Description

Solid Carbide Centering Drills with 90 Degree Apex Angle for Better Centering Performance 



Suitable for Centering & Chamfering on CNC Machines.



Feature Advantage:

  • Non-coated.
  • Diameter D5-D20, complete types.
  • Compared with general center drilling tools, the centering drill is more stable, and the centering drilling can be easily performed on the inclined surface.


Technical Information:

  • Chip formation and chip evacuation are important issues in drilling. It depends on the workpiece material, blade geometry selection, coolant pressure, capacity, and cutting parameters.
  • Typical application of integral alloy drill bits:
  • Small diameter hole
  • Tight or precision tolerance hole
  • The hole shorter than a deep hole
  • Chip clogging can cause the drill bit to move radially and affect hole quality, bit life and reliability.
  • The drill bit is mounted on the shank chuck and its circumferential runout must be less than 0.02 mm.


Recommended Cutting Parameters:

  • When using this series of tools for the first time, the cutting is performed according to the recommended cutting speed of 90% or the feed rate of 85%. When the cutting condition is stable, the cutting speed and the feed are increased one by one.
  • Cutting parameters are recommended for water soluble cutting fluids.
  • Use a defect-free, clean chuck when installing the drill and control the drill runout to within 0.02 mm.
  • The recommended cutting parameters are for applications where the hole depth is below 5D.
  • The recommended cutting parameters are externally cooled drills, which can be increased by 10%-15% depending on the situation.


Contact Details

WhatsApp : +8618673357990