The Solid HM Internal Coolant Straight Flute Drill is a high-performance carbide cutting tool developed and manufactured by AMG. Specifically designed for high-precision, high-efficiency deep hole machining applications, this tool features an ultra-fine grain solid HM (hard metal/carbide) substrate. It offers excellent wear resistance, fracture toughness, and heat stability. The combination of straight flute and advanced internal coolant channels ensures chip evacuation, precise guidance, and significantly improved drilling stability and hole quality. This tool is ideal for tackling the challenges posed by aerospace-grade metals.

Applications
Perfectly suited for high-precision deep hole drilling in aerospace, medical device manufacturing, and mold making. It is especially effective for machining difficult-to-cut materials such as stainless steel, titanium alloys, and heat-resistant superalloys.

Specification Table

Diameter (D)	Overall Length (L)	Flute Length (L1)	Shank Diameter (d)	Coolant Type	Material
3.0 mm	75 mm	20 mm	6 mm	Dual Internal Coolant	Ultra-fine Grain HM
5.0 mm	100 mm	30 mm	6 mm	Dual Internal Coolant	Ultra-fine Grain HM
8.0 mm	120 mm	45 mm	8 mm	Dual Internal Coolant	Ultra-fine Grain HM

Working Principle
The tool uses a straight flute design to ensure superior axial guidance and drilling stability. Integrated internal coolant channels deliver cutting fluid directly to the cutting edge, then reducing heat buildup and tool temperature, and preventing heat deformation and extending tool life. The internal cooling system also minimizes heat stress and built-up edge during cutting, ensuring smooth chip evacuation and enhancing hole wall finish and positional accuracy—crucial in precision deep hole drilling tasks.

Advantages

• High Guidance Accuracy & Hole Precision: Straight flutes ensure steady feed-in and reduce deviation.

• Efficient Internal Cooling & Chip Evacuation: Optimized coolant flow improves deep hole processing performance.

• Ideal for Hard-to-Machine Materials: Designed for titanium alloys, and similar materials with excellent tool life.

• Flexible Customization: AMG offers tailor-made tool specifications to suit specific workpieces and CNC systems.

• Superior Wear Resistance: Ultra-fine grain carbide substrate has outstanding heat and fracture resistance.

FAQ

Q: What materials can this drill handle?
A: It is suitable for steel, stainless steel, aluminum alloys, titanium alloys, and other common aerospace metals.

Q: Can customer specifications be requested?
A: Yes, AMG provides full customization, including diameter, overall length, and shank configuration.

Q: Is it compatible with 5-axis CNC machines?
A: Absolutely. This drill is compatible with various CNC systems, including 5-axis setups for complex aerospace components.

Q: How deep can it drill?
A: AMG offers a wide range of options, supporting deep hole drilling from 3D up to 15D and beyond.