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Harden 3Pcs Titanium Step Drill Bit Set 4-32mm - HSS Spiral Flute Hole Cutter for Metal & Wood - IMSONS Pakistan

Harden 3Pcs Step Drill Bit Set | 614143

Original price was: 4,500₨.Current price is: 3,700₨.

Brand:

  • Harden Tools

  • ✅ 3-Piece HSS Titanium Coated Step Drill Set

  • ✅ Precision Steps: 4-12mm (1mm), 4-20mm (2mm), 4-32mm (2mm)

  • ✅ Heat-Treated for Enhanced Durability

  • ✅ Spiral Flute Core for Clean Chip Removal

  • ✅ Perfect for Metal, Wood & Plastic Applications

Bulk Order Requests & Customer Support:
SKU: Harden - 614143 Categories: , , Tags: , , , , , , , , , Brand:

Professional-Grade Step Drilling Solution
The Harden 3Pcs Step Drill Bit Set (614143) delivers precision drilling performance for metalworkers, carpenters, and DIY enthusiasts. Crafted from heat-treated High-Speed Steel (HSS) with titanium nitride coating, these spiral flute bits offer exceptional durability and heat resistance.

Key Features:

  • Titanium Coated Surface: Reduces friction and extends bit lifespan

  • Precision Ground Steps: 4-12mm (1mm/step), 4-20mm (2mm/step), 4-32mm (2mm/step)

  • Spiral Flute Design: Efficient chip removal for cleaner holes

  • Multi-Material Compatibility: Ideal for sheet metal, aluminum, wood, PVC, and plastics

  • Professional Finish: Burr-free results with smooth edges

Technical Specifications:

  • Material: HSS with Titanium coating

  • Size Range:

    • 4–12mm (1mm step)

    • 4–20mm (2mm step)

    • 4–32mm (2mm step)

  • Shank Diameter: 6.35mm (1/4″) Standard

  • Flute Type: Spiral Core Design

Step BitDiameter RangeStep IncrementPrimary Application
Small4 mm – 12 mm1 mmPrecision drilling for electrical boxes, sheet metal, and small fasteners.
Medium4 mm – 20 mm2 mmGeneral drilling, automotive work, conduit installation.
Large4 mm – 32 mm2 mmLarge holes in ductwork, paneling, and wide applications.

Perfect for electricians, mechanics, and DIY enthusiasts, the heat-treated HSS construction ensures long life and reduced wear. Whether you’re in a workshop or on-site, this drill bit set delivers reliable performance every time.

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FAQs

What materials are these step drill bits suitable for?
A1: These step drill bits are primarily designed for drilling clean, round holes in thin materials such as sheet metal, plastic, aluminum, fiberglass, and thin wood.
What is the benefit of the Titanium coating?
A2: The Titanium coating (Titanium Nitride, or TiN) significantly increases the hardness of the bit surface and acts as a lubricant, reducing friction and heat buildup during drilling. This extends the lifespan of the HSS cutting edges and allows for faster, smoother drilling.
Do I need a pilot hole before using these bits?
A4: No. Step drill bits are designed to start small and gradually enlarge the hole, which eliminates the need for pre-drilling a pilot hole. This saves a significant amount of time when working with many different hole sizes.

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