For machining professionals seeking optimal performance in specific applications, the right tool geometry is paramount. While a Carbide Drill With Twist Flute excels in general-purpose drilling, the Carbide Drill With Straight Flute is the specialist for non-ferrous and soft materials. Its design is critical for applications where clean, precise holes are essential and chip clogging is a primary concern. This makes it exceptionally suitable for creating Carbide Drill For Through Hole operations in materials like aluminum, copper, plastics, and certain composites. The straight flute geometry provides a direct, unimpeded path for chips to evacuate upwards, preventing recutting and ensuring a smoother finish on the bore wall. For deep cavity work or scenarios where chip accumulation can lead to tool failure, this efficient evacuation is invaluable. It is also a preferred choice for many Carbide Drill For Blind Hole tasks in soft materials, as it helps prevent packed chips at the hole bottom. However, for true Carbide Drill For Deep Hole drilling in tougher steels, specialized coolant-fed twist drills are often more appropriate.
The effectiveness of the Carbide Drill With Straight Flute stems from its focused engineering. Unlike twist drills that rely on helical grooves to move chips out, the straight-flute design utilizes a zero-degree rake angle along the cutting edge. This configuration shears the material cleanly and pushes the chips directly up the flute with minimal friction and no centrifugal force-induced packing. This results in several key benefits: reduced cutting forces, lower heat generation at the cutting edge, and a significantly decreased risk of chip welding or galling, especially in gummy materials. The bore quality is typically excellent, with a fine surface finish that often eliminates the need for secondary reaming operations. Furthermore, the robust structure of the straight flute provides greater rigidity and resistance to deflection compared to some high-helix tools, enhancing positional accuracy and hole straightness, particularly in start-up.
Our Carbide Drill With Straight Flute is manufactured from premium sub-micron grain carbide substrates, coated with advanced PVD (Physical Vapor Deposition) coatings like AlTiN or TiSiN for enhanced wear resistance and thermal stability.
| Diameter (mm) | Overall Length (mm) | Flute Length (mm) | Recommended Speed (m/min) for Aluminum* | Recommended Feed (mm/rev)* |
|---|---|---|---|---|
| 3.00 | 57 | 20 | 80 - 120 | 0.03 - 0.06 |
| 6.00 | 78 | 32 | 70 - 100 | 0.08 - 0.12 |
| 10.00 | 93 | 42 | 60 - 90 | 0.12 - 0.18 |
| 12.00 | 101 | 50 | 55 - 80 | 0.15 - 0.22 |
| 16.00 | 120 | 65 | 50 - 75 | 0.18 - 0.28 |
*Note: Cutting parameters are starting recommendations. Always adjust based on specific material grade, machine rigidity, coolant application, and desired finish.