Sealey AK4748 HSS 4341 Step Drill Bit 4-30mm Spiral Flute

Sealey AK4748 HSS 4341 Step Drill Bit 4-30mm Spiral Flute – Twist Drill Bits

The Sealey AK4748 HSS 4341 Step Drill Bit 4-30mm Spiral Flute is a premium-grade tool, expertly engineered for precise and efficient hole drilling in metal, plastic and wood. Designed with robust high-speed steel (HSS 4341), it provides remarkable durability and delivers consistently smooth cutting performance across a broad size range.

• Constructed from high-speed steel (HSS 4341) for optimal hardness and wear resistance
• Step drill bit offers a drilling range of 4mm to 30mm
• Precision-engineered spiral flute design ensures clean chip removal
• Suitable for use on metal, wood, and most plastics
• Suitable for professional and DIY applications alike

When compared to standard twist drill bits or earlier model step drill bits, the Sealey AK4748 stands out with its combination of advanced spiral flute design and high-performance HSS 4341 steel construction. While conventional drill bits may struggle with smoothness and chip extraction, this step drill bit’s spiral fluting significantly enhances cutting efficiency and reduces heat build-up. In addition, its broad step range (4mm to 30mm) makes it considerably more versatile than many competitors or older models limited to smaller diameters.

Key Technical Advantages:
The Sealey AK4748 HSS 4341 Step Drill Bit 4-30mm Spiral Flute sets a new benchmark in the twist drill bits category with its unique attributes, including:

• Spiral flute geometry for rapid, clog-free drilling
• Superior edge retention for long-lasting sharpness
• Low friction surface minimises burring and heat generation
• Ideal for precision enlarging and deburring holes
• Optimised for high-speed performance with reduced vibration

Technology and Performance
Utilising high-speed steel (HSS 4341), this step drill bit boasts a carefully hardened structure, resulting in exceptional resistance to wear and extending the tool’s working life. The spiral fluted profile not only accelerates the drilling process but also delivers cleaner, smoother holes with less effort. Suitable for both professional tradespeople and keen DIYers, the Sealey AK4748 offers a comprehensive solution for those requiring reliable, accurate drilling across a host of materials.

Upgrade your toolkit with the Sealey AK4748 HSS 4341 Step Drill Bit 4-30mm Spiral Flute and experience industry-leading performance within the trusted twist drill bits category.