Rennie Tool Company Solid Carbide Slot Drills sit in the cutting-tool category and promise accurate, repeatable slotting in metal with long life under high speeds. Confidence on the shop floor comes from predictable, clean cuts and fewer interruptions for tool changes. Is the durability and performance right for serious metalworkers?
⚡ At a Glance
- • Cutting Quality: Micrograin carbide and 2-flute geometry produce clean, narrow slots with minimal burrs
- • Best for: Machinists and fabricators needing precise slotting in aluminium and other metals
- • Not ideal for: Applications requiring larger shank sizes or multi-flute roughing cutters
Micrograin carbide two-flute endmill, TiAlN coated and centre cutting with a square end. Flute length 13mm, shank diameter 5mm and overall length 50mm for rigid, controlled milling.
Clean, repeatable slots - thanks to 2-flute micrograin carbide geometry
Two-flute geometry gives ample chip clearance and a consistent cutting edge while micrograin carbide maintains sharpness under load. Centre cutting square end allows plunge starts and full slotting without secondary operations.
Precise slot dimensions and neat finishes reduce need for secondary deburring. Consistent performance eases setup and repeat runs.
Extended tool life - with TiAlN coating
Titanium aluminium nitride (TiAlN) coating increases surface hardness and resists oxidation at high temperatures during high-speed cutting. Coating lowers abrasion and helps maintain edge integrity over longer cycles.
Fewer tool changes and longer runs between regrinds improve uptime. Coating is especially beneficial when working at elevated spindle speeds.
Stable, high-speed milling - with short flute length and solid carbide construction
A 13mm flute length and 5mm shank minimise deflection, while solid carbide construction maximises rigidity at the cutting edge. Overall length of 50mm balances reach and stiffness for controlled metal removal.
Higher spindle speeds and reliable dimensional control are possible, producing cleaner slots without chatter. Rigidity helps when machining narrow features repeatedly.
✨ The 4 Key Reasons for Rennie Tool Company Solid Carbide Slot Drills
- TiAlN coating - Reduces wear, enabling more cuts per tool before replacement
- Micrograin carbide - Maintains sharp edges for cleaner, repeatable slots across multiple passes
- Centre cutting square end - Enables plunge cutting and accurate slot starts every time
- 5mm shank with 13mm flute - Offers rigidity and control during high-speed milling operations
📋 Technical Details at a Glance
- Category: Cutting tools / Slot drills
- Brand: Rennie Tool Company
- Material: Micrograin carbide
- Coating: TiAlN (titanium aluminium nitride)
- Flutes: 2
❓ Frequently Asked Questions
Q: Can these drills cut narrow aluminium slots accurately?
A: Yes. User feedback specifically notes precise cutting of 2mm aluminium slots, indicating reliable slotting performance in aluminium.
Q: Are they suitable for high-speed milling?
A: Yes. Reviews report excellent performance at high speeds, consistent with TiAlN coating and solid carbide construction designed for elevated spindle use.
Q: What does the TiAlN coating do?
A: TiAlN coating increases surface hardness and heat resistance, extending tool life and helping maintain edge sharpness during demanding cuts.
🏆 Our Verdict
Ideal for machinists and fabricators who require accurate, repeatable narrow slots in metal components. The combination of micrograin carbide, 2-flute centre-cut geometry and TiAlN coating delivers durable, high-speed capability and cleaner finishes. Durable construction and coating minimise downtime, supporting long-term tool life and consistent shop-floor results.
