DEWALT EXTREME Industrial Cobalt HSS-CO 3.0mm 2 Pack DEWDT4902-QZ

Description

High-Performance Drilling for Tough Metal Applications

When you’re working with high alloy steels and materials with tensile strength up to 1,100N/mm², standard drill bits simply don’t hold up. These DEWALT EXTREME Cobalt HSS-CO drill bits are built for high-performance cutting into demanding metals without sacrificing precision.

The no-walk tip design helps you start cleanly on curved or smooth surfaces (5mm and above), reducing the need for pilot punching and improving job speed. The recessed cutting wings produce cleaner, burr-free holes, helping you achieve professional results with less rework.

A strong central core—thicker toward the chuck—adds stability during freehand drilling, helping reduce breakage risk when working on-site under pressure.

Built for Reliability, Control, and Long Tool Life

Trade environments demand tools that don’t fail mid-job. These cobalt HSS-CO drill bits feature a spin-proof, non-slip three-sided shank, ensuring maximum grip in the drill chuck and reducing slippage under load.

The reinforced core design improves fracture resistance, especially during manual or freehand drilling, giving electricians and maintenance teams confidence when working in tight or awkward positions.

Manufactured for consistent performance, these bits are suitable for both portable and stationary drilling setups, making them a dependable choice for workshop fabrication and on-site installation work.

Trade-Ready Convenience for Fast, Efficient Workflows

For electricians and contractors managing tight deadlines, these DEWALT EXTREME 3.0mm drill bits support faster task completion with fewer interruptions. Their design reduces walking, improves entry accuracy, and helps maintain clean drilling results—minimising rework and saving valuable labour time.

Ideal for professionals who need dependable consumables in their kit, these bits integrate seamlessly into everyday electrical and metal installation tasks, from mounting hardware to structural fittings.

Available through iSupply Electrical, contractors benefit from trade-focused supply support, competitive pricing, and reliable access to essential drilling tools when projects demand it.

Key Specs

• Diameter: 3.0mm
• Total Length: 61mm
• Working Length: 33mm
• Material: HSS-CO (Cobalt High-Speed Steel)
• Pack Size: 2 pieces
• Tip Design: No-walk point for improved entry accuracy
• Shank: Non-slip, spin-proof three-sided shaft
• Application: High alloy steels and metals up to 1,100N/mm² tensile strength

Ideal For

• Licensed electricians and electrical contractors
• Metal drilling for switchboards, trays, and mounting systems
• Maintenance and facilities teams
• Commercial and industrial installation work
• Workshop fabrication and on-site drilling tasks
• High-strength steel and alloy drilling applications