Best Side Cutting Drill Bits for Metal: Titanium HSS Sets for Precision
Whether you’re assembling equipment, drilling metal sheets, or creating precise pilot holes, side cutting drill bits designed for metal can improve accuracy and reduce wear. This guide reviews five top-rated titanium-coated HSS (high-speed steel) twist drill bit sets that feature serrated side cutting edges and 135-degree split points. Each selection emphasizes durability, fast drilling, and compatibility with common electric tools. Read on to compare sizes, materials, and design features that help prevent walking and heat buildup during metalworking tasks.
Summary of Selected Products
| Product | Sizes Included | Key Benefit | Brand |
|---|---|---|---|
| Hariendny 8 Pack | 3–10 mm | Durable titanium coating; hex shank for better grip | Hariendny |
| Rocaris 8 Pack | 3–10 mm | 2X life vs standard bits; fully ground spiral | Rocaris |
| JONMON 8Pcs | 3–10 mm | 135° split point; serrated cutting design | JONMON |
| Rocaris 6 Pack | 3–8 mm | Great value; 2X life; 135° split point | Rocaris |
| AOKLIT 6 Pack | 3–8 mm | Wide set; optimized for precision and speed | AOKLIT |
Hariendny 8 Pack Titanium Coated HSS Twist Drill Bits
The Hariendny set includes eight sizes—3 mm, 4 mm, 5 mm, 6 mm, 6.5 mm, 7 mm, 8 mm, and 10 mm—geared toward metal, but usable on common plastics and woods as well. The hex shank minimizes slipping in drill chucks, while the titanium coating helps sustain edge sharpness for longer life. A fully ground spiral flute reduces friction and heat, enabling cooler, more efficient drilling. These features support rather consistent results when starting holes in metal and composite materials.
Rocaris 8 Pack Titanium Coated HSS Twist Drill Bits
This Rocaris pack covers eight common sizes (3, 4, 5, 6, 6.5, 7, 8, 10 mm) and is designed for broad compatibility with most power drills. The HSS material, paired with a titanium coating, improves edge retention and provides a claimed twofold life compared with standard bits. A fully ground spiral groove and a 135-degree split point work together to minimize walking and to lower friction and heat, delivering faster, more controlled drilling through metal, plastic, and wood.
JONMON Titanium Coated HSS Bits, 8Pcs
JONMON’s 8-piece set spans 3–10 mm with a 135-degree split point and straight shank. The titanium coating extends cutting life and maintains sharpness while the serrated cutting design reduces bite and improves control. The straight shank is compatible with most electric and benchtop drills, and the balanced geometry helps prevent walking, making metal drilling more predictable for beginners and professionals alike.
Rocaris 6 Pack Titanium Coated HSS Bits
This Rocaris set focuses on the most commonly used sizes (3, 4, 5, 6, 6.5, 8 mm) for everyday metalworking. The combination of titanium coating and HSS provides robust edge retention and improved longevity. The 135-degree split point reduces walking, while the fully ground spiral groove design minimizes heat and friction for smoother operation across metal, plastic, and wood.
AOKLIT 6 Pack Titanium Coated HSS Bits
AOKLIT offers a succinct 6-piece set in 3–8 mm, designed for precision and speed. The bits use a titanium coating to maintain sharp edges, and a fully ground spiral groove to reduce heat during drilling. The 135-degree split point and straight shank are engineered to prevent walking and ensure fast, accurate starts, making these bits suitable for a range of metal, wood, and plastic drilling tasks.
Buying Guide: Key Considerations For Side Cutting Metal Drill Bits
- Material and coating: Titanium-coated HSS bits offer superior edge retention and heat resistance. This helps maintain sharpness over more holes, especially in tougher metals.
- Point geometry: A 135-degree split point reduces walking and enables precise starts in harder materials. A ground spiral groove helps dissipate heat and lowers friction.
- Shank type: Hex shanks improve grip and prevent slipping in the chuck; straight shanks are more common and widely compatible but may slip if the chuck isn’t tightened properly.
- Size range: Sets covering 3–8 mm or 3–10 mm fit a wide array of tasks, from pilot holes to larger bore applications. Check if the range matches your typical projects.
- Durability and life: Look for claims like “2X life” over standard bits, which indicate longer tool life under similar usage conditions.
- Drill compatibility: Ensure the bits fit your drill’s chuck size and power. Most hex shank bits are compatible with cordless and corded drills; confirm shank and drill compatibility for your hardware.
- Intended materials: While designed for metal, these sets are often suitable for plastics and woods as well. Consider the primary workload to choose the right particle hardness and coating.
- Cost vs. value: Multi-pack sets can offer better per-bit value and longer-term readiness for varied jobs, especially in professional settings.
When selecting a side cutting drill bit set for metal, consider the typical thickness and type of metal you work with, the frequency of use, and the drills you own. The reviewed sets emphasize durability, heat management, and precision starts, making them suitable for hobbyists and professionals alike. Review the included sizes to ensure alignment with your most common projects. For best results, use sharp bits with moderate feed pressure and consistent speed to avoid overheating and wear.