Customized alloy drill with internal cooling - a reliable choice
for efficient deep hole machining
This customized alloy internal cooling drill bit, has a bronze PVD
coating, is specifically designed for efficient deep-hole machining
The cutting tool is made of high-quality ultra-fine grain cemented
carbide, precisely ground and manufactured, featuring excellent
wear resistance, high temperature resistance, and anti-adhesion
performance. It can achieve stable cutting and precise hole
diameter control when machining deep holes in kinds of materials
such as steel, aluminum alloy, and stainless steel.
scope of application
Suitable for deep hole drilling of the following materials:
Steel components
aluminum alloy
stainless steel
Soft metals such as copper alloys
It is widely used for batch deep-hole high-precision machining in
the following industries:
Automotive components (such as engines, valve bodies, etc.)
Mold cooling water circuit
Hydraulic valve body and pipeline system
Aviation parts processing
Medical device manufacturing
【Specifications】
Material: Ultra-fine grain carbide
Coating: Bronze PVD Coating
Cooling: Thru-coolant
Flutes: 2 or 3 flutes (customizable)
Flute Length: Customizable based on deep hole requirements
Applicable Machines: CNC machining centers, CNC drilling machines
Customizable Diameter Range: φ2mm - φ25mm
Five advantages of internally cooled drill bits
✅ 1. Efficiently cool the cutting area
The internal cooling channel precisely delivers cooling fluid to
the cutting edge, quickly removing high temperatures to prevent
tool overheating, chipping, or wear, ensuring stable cutting
performance.
✅ 2. Smooth chip evacuation to prevent hole blockage
The most feared issue in deep hole machining is poor chip
evacuation. The AMG internal cooling drill avoids chip accumulation
effectively and tool jamming by flushing the chips with internal
cooling fluid, keeping the hole clean and ensuring smoother
machining.
✅ 3. Better machining accuracy and hole wall quality
Continuous cooling and rapid chip removal can reduce thermal
deformation, prevent scratching of the hole wall, ensure stable
hole diameter and high surface finish, making it suitable for
high-precision applications.
✅ 4. make the tool have a long life
Reducing thermal shock and chip friction leads to slower tool wear
and a reduced tool change frequency.
✅ 5. Preferred choice for deep holes, high-speed machining, and
difficult-to-machine materials
For difficult-to-machine materials such as stainless steel and
titanium alloys, as well as deep holes exceeding 30D and 50D,
internal cooling drills can effectively solve the problems of heat
dissipation and chip removal, ensuring long-term stable operation.
Why must an internal cooling structure be chosen for deep hole
machining?
1. Heat is difficult to dissipate in deep holes, which can easily
cause tool burn
The external coolant cannot effectively reach the cutting zone,
leading to excessive temperature, which can cause tool deformation,
workpiece expansion, and even burn damage to the hole wall.
2. Difficulty in chip removal and high risk of hole blockage
It is difficult to discharge chips from deep holes, which can
easily lead to accumulation, chip jamming, and tool breakage. This
not only affects efficiency but may also damage the workpiece.
