Carbide Straight Shank Twist Drills For CNC & PCB Precision Drilling

If you've ever struggled with broken drills, clogged flutes, or inaccurate holes during small-diameter CNC or PCB machining, these carbide twist drills are built to solve exactly those problems.

Made from solid tungsten carbide, they're designed for consistent, clean holes in hard-to-machine materials - from circuit boards to mold parts and precision electronic components.

1. About These Drills

These are precision-ground, straight-shank twist drills made specifically for CNC and PCB drilling equipment. The high-rigidity carbide body delivers stable performance even at high spindle speeds, while the flute geometry is optimized for smooth chip removal in small holes.

We offer both coated and uncoated versions:

• Uncoated: Ideal for non-ferrous materials like aluminum, copper, and plastics
• Coated: Improved wear resistance for stainless steel, tool steel, and other hard materials

2. What Makes Them Different?

✅ Less breakage in small holesSolid carbide construction offers better rigidity than high-speed steel drills, reducing the risk of breakage when drilling tiny, deep holes.

✅ Smooth chip removalPrecision-ground flutes prevent clogging, even in deep-hole applications, so you get cleaner cuts and fewer scrapped parts.

✅ Accurate, consistent holesThe tight manufacturing tolerances ensure straight, round holes, which is critical for PCB alignment and precision mold work.

✅ Versatile fit for common equipmentStandard shank sizes fit most CNC drilling machines and PCB routing equipment, so you don't need custom tool holders.

3. Typical Applications

• PCB circuit board drilling for electronics manufacturing
• Precision hole making in watch parts, sensors, and small components
• CNC mold making: ejector pin holes, vent holes, and small diameter features
• General metalworking: stainless steel, aluminum, brass, and plastic parts

4. Key Specifications

5. Custom & Bulk Options

We can produce custom sizes, lengths, and coating combinations to match your exact machine and material requirements. OEM orders are welcome for high-volume production lines.

🌐 Main Brand Site: https://big-brother-tool.com/

📌 Product Display Site: https://www.dxdtools.com/

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