Step Drill Bit Reduce friction, boost precision, and extend bit life
Achieve clean, burr-free holes in aluminium profiles with the MAC AFRIC 3 PCS Step Drill Bit Set.
Designed for lock slots, drainage holes, and accessory cutouts, this titanium-coated HSS set minimizes friction and heat buildup—delivering smoother drilling and longer tool life.
With dual-flute construction and a 118° split point tip, it ensures accurate starts and chip-free finishes, even on soft metals.
Ideal for low- to medium-volume fabrication, this set empowers technicians to work faster, cleaner, and with greater confidence
- 🔧 Titanium coating reduces heat and wear for longer-lasting drill bits
- 🌀 Dual-flute design clears chips fast for smoother hole edges
- 🎯 Split point tip prevents walking for precise hole placement
⭐⭐⭐⭐⭐ JP Smith, Tantrum Aluminium, Namibia - Happy Customer “Before switching to this set, our bits overheated and grabbed the profile. Now, every lock hole is clean, centered, and done in seconds. No more rework, no more stress.”
📋 Key Drill Bits Features & Benefits
| Feature | Benefit |
|---|---|
| Titanium Coating | Reduces friction, resists heat, corrosion, and rust |
| High-Speed Steel (HSS) | Ensures long-lasting sharpness and durability |
| Dual-Flute Design | Smooth chip evacuation for cleaner holes |
| 118° Split Point Tip | Prevents walking and ensures accurate starts on flat aluminium surfaces |
| Step Increments (1mm/2mm) | Allows gradual hole enlargement without grabbing or cracking |
| Hex Shank (6mm dia) | Provides secure grip and compatibility with standard drills |
| Nylon Storage Bag | Keeps bits organized and protected on-site or in transit |
📐 Drill Bits Technical Specifications
| Specification | Value |
|---|---|
| Quantity | 3 PCS |
| Bit Lengths | 45mm, 48mm, 50mm |
| Shank Length | 25mm |
| Shank Diameter | 6mm |
| Step Range | 4mm to 20mm (23 steps) |
| Shank Type | Hex Shank |
| Material | Titanium-Coated HSS |
| Application | Steel plating, aluminium, plastic, wood, rubber |
| Package Weight | 0.02 kg |
| Package Dimensions | 19 × 11.8 × 5 cm |
🧠 Expert Advice
Use a drilling speed chart to optimize RPM and reduce wear. Apply cutting fluid, clamp profiles securely, and deburr edges after drilling for a clean finish.
🛠️ Why This Step Drill Set Is Suitable
-
Material: High-speed steel (HSS) with titanium coating
🔹 Great for soft metals like aluminium
🔹 Titanium reduces friction and heat buildup -
Step Increments: 1mm and 2mm
🔹 Ideal for gradually enlarging holes without cracking or grabbing -
Dual-Flute Design
🔹 Helps evacuate chips smoothly, reducing clogging in aluminium -
Split Point Tip (118°)
🔹 Prevents walking and ensures clean starts on flat profiles
⚙️ Best Practices for Aluminium Drilling
- Use cutting fluid (even a drop of oil) to reduce heat and extend bit life
- Clamp the profile securely to avoid vibration or movement
- Start slow—low RPM is better for aluminium
- Deburr edges after drilling for a clean finish
⭐⭐⭐⭐⭐ Loved by Hundreds of Happy Customers
Here is what our customers say about AluCrimp!
I was scared at first but I had to face my fears and eventually I was not disappointed. I bought the machine at 9am on Monday and received the order at 8am the next Tuesday. I am a happy customer.
⭐⭐⭐⭐⭐ Robert C - Mpumalanga
⭐⭐⭐⭐⭐ I'm absolutely loving this Clamping Machine"
AluCrimp Solutions Are Reliable
We travelled all the way from Venda to AluCrimp Sales Office. To our surprise they are so professional and we spent a good few minutes learning about the window making machines. I enjoyed the discussion and I strongly recommend them for anyone new in need of guidance.
⭐⭐⭐⭐⭐ D Marais - Venda, Limpopo