7.4mm non-ferrous metals Drilling 2 Flutes Carbide Step Drill with Internal Coolant with Excellent Chip Evacuation

7.4mm Internal Cooling 2-Edge Carbide Step Drill - Efficient Drilling Solution for Non-Ferrous Metals

This 7.4mm internal cooling 2-edge carbide step drill, produced by AMG, is specifically designed for high-precision drilling of non-ferrous metals such as aluminum, copper, and brass. It uses an internal cooling through-hole structure, with straight flute chip evacuation design, offering excellent chip evacuation performance and no burr hole machining

Applications:

• Multi-diameter step hole machining for aerospace components

• Deep hole and blind hole drilling in non-ferrous fixtures and molds

• High-speed CNC drilling in non-ferrous parts with burr-free requirements

Specification Table:

working principle:

This step drill adopts an internal cooling design, which directly introduces cooling fluid into the cutting edge area, enhancing cooling efficiency and lubrication capabilities, preventing chip accumulation and tool overheating. The straight flute structure effectively guides the chips out of the hole, making it particularly suitable for soft metals with strong chip adhesion. The step geometry design allows one tool to complete multiple hole diameters, improving machining efficiency and maintaining coaxial accuracy.

Customer purchase demand analysis:

When selecting an appropriate internal coolant step drill, customers often focus on the following :

Type of workpiece material: Is it soft metal such as aluminum alloy, copper, or brass that tends to stick to the cutting tool?

If so, it is recommended to choose the internal cooling + straight groove structure for smoother chip evacuation.

Complexity of hole structure: Is it necessary to process multi-segment stepped holes or deep holes?

If one-time molding or high coaxiality machining is required, a customized stepped structure should be chosed.

Is it continuous batch processing? For applications with requirements on life and stability, it is recommended to use the ultra-fine particle alloy + coating version.

Detailed pictures

Drawing

Our factory:

FAQ:

Q1: Can this tool handle high-speed drilling in aluminium and copper?
A1: Yes, it is specifically designed for high-speed, no burr drilling in aluminium, copper, and other non-ferrous metals.

Q2: What are the benefits of the internal coolant system?
A2: It reduces heat buildup, flushes chips away efficiently, and extends tool life during deep and continuous drilling.

Q3: Is customization available for step sizes and coatings?
A3: Yes, AMG provides customized step sizes and coating solutions to match your specific machining requirements.

Q4: How is quality ensured for each tool?
A4: AMG performs a strict 4-step inspection, including raw material inspection, tolerance checking after grinding, dimensional accuracy testing, and final appearance inspection post-coating.