IRWIN HSS TCT Tip Drill Bit, 3.5mm, 70mm
High-performance IRWIN TCT drill bit (3.5mm) for hardened steel, cast iron, and alloys. 70mm length with carbide tip.
The IRWIN HSS TCT Tip Drill Bit is a precision tool designed for stationary machines, offering exceptional performance in drilling hardened steel, cast iron, bronze alloys, and manganese alloyed steel. The tungsten carbide tipped (TCT) construction ensures durability and accuracy, making it ideal for tough materials. The C2 carbide tip can effectively drill materials with a hardness of up to 50 Rockwell C, while the four-faceted ground design reduces drilling pressure and enhances centring precision.
The body of the drill bit is crafted from chrome vanadium steel, hardened to 56 Rockwell C for added strength and longevity. Using a coolant (3-6% emulsion) is recommended to maximise the bit’s lifespan and improve cutting performance.
Specifications:
- Diameter: 3.5mm
- Total Length: 70mm
- Working Length: 39mm
Ideal for professionals and DIY enthusiasts, this drill bit is a reliable choice for demanding drilling applications.
- Precision drilling in hardened steel
- Drilling cast iron components
- Working with bronze and manganese alloys
- Machining applications requiring carbide-tipped bits
- Material: Tungsten Carbide Tipped
- Body Material: Chrome Vanadium Steel
- Hardness (Tip): Up to 50 Rockwell C
- Hardness (Body): 56 Rockwell C
- Tip Design: Four-faceted ground for reduced drilling pressure
- Compatibility: Hardened steel, cast iron, bronze alloys, manganese alloyed steel
- Recommended Coolant: 3-6% emulsion
- Diameter: 3.5mm
- Total Length: 70mm
- Working Length: 39mm
- Weight: 10g
Always follow local regulations and product guidance.
Free standard delivery on UK mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For faulty items, contact us within 14 days for a replacement or refund.
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