► Harlingen | Step Drills

Precision Hole Enlargement Tools for Professional Machining When versatility meets precision, Harlingen Step Drills deliver clean, controlled drilling across multiple diameters in one continuous cut. Built for trade professionals who demand accuracy, speed & surface quality, these tools are perfect for sheet metal, plastics & alloys where consistent hole sizing...

Precision Hole Enlargement Tools for Professional Machining

When versatility meets precision, Harlingen Step Drills deliver clean, controlled drilling across multiple diameters in one continuous cut. Built for trade professionals who demand accuracy, speed & surface quality, these tools are perfect for sheet metal, plastics & alloys where consistent hole sizing matters most.

Manufactured from premium HSS with titanium nitride (TiN) coating, Harlingen Step Drills offer superior hardness, heat resistance & wear protection under load. The spiral flute design ensures smooth chip removal & minimal vibration, keeping each cut cool, sharp & clean through repeated use.

Ideal for metalworkers, electricians & fabricators, these step drills provide reliable performance for deburring, chamfering & hole expansion in a single pass.

Complete your setup with Clamps & Vises, increase cutting capability using Milling Cutters & maintain dimensional accuracy with Measuring & Layout Tools. Protect cutting edges with Lubrication & Cleaning Gear, store safely with Tooling Storage & depend on Same Day Dispatch, Trade Pricing & Warranty & Parts Support for workshop reliability.

What’s in This Collection:

► TiN Coated HSS Spiral Flute Step Drills - 4-20 mm
Trade-grade step drill designed for precision hole sizing from 4mm to 20mm. TiN coating provides extended wear life & reduced friction under load.

► TiN Coated HSS Spiral Flute Step Drills - 4-32 mm
Extended range step drill offering maximum reach for larger holes. Delivers smooth, chatter-free performance on metal & composite materials.

► TiN Coated HSS Spiral Flute Step Drills - 4-12 mm
Compact spiral flute design ideal for smaller holes in thin sheet metal & tubing. Ensures clean edges & minimal burr formation.

 

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  • Harlingen - 4-32mm TiN Coated HSS Spiral Flute Step Drills - | H-11-001B-T06
    Harlingen - 4-32mm TiN Coated HSS Spiral Flute Step Drills - | H-11-001B-T06
    Harlingen - TiN Coated HSS Spiral Flute Step Drills 4–32 mm | H-11-001B-T06 Precision engineered for fast, clean hole enlarging across a range of materials, the Harlingen TiN Coated HSS Spiral Flute Step Drills deliver smooth cutting performance from 4 mm up to 32...
    $79.00
    $79.00
  • Harlingen - 4-20mm TiN Coated HSS Spiral Flute Step Drills - | H-11-001B-T02
    Harlingen - 4-20mm TiN Coated HSS Spiral Flute Step Drills - | H-11-001B-T02
    Harlingen - TiN Coated HSS Spiral Flute Step Drills 4–20mm | H-11-001B-T02 A precision step drill engineered for clean, accurate hole enlargement in sheet metal and thin materials. The Harlingen TiN Coated HSS Spiral Flute Step Drill covers a 4–20mm range, allowing you to...
    $29.00
    $29.00
  • Harlingen - 4-12mm TiN Coated HSS Spiral Flute Step Drills - | H-11-001B-T01
    Harlingen - 4-12mm TiN Coated HSS Spiral Flute Step Drills - | H-11-001B-T01
    Harlingen - TiN Coated HSS Spiral Flute Step Drills - 4–12mm | H-11-001B-T01 Built for clean, precise hole enlargement in metal and sheet materials, the Harlingen TiN Coated HSS Spiral Flute Step Drill delivers smooth cutting performance with reduced chatter and burrs. Covering a...
    $21.00
    $21.00

Clean Cuts. Smooth Steps. Trade Precision.

Harlingen Step Drills combine accuracy, durability & control in a single cutting tool. Each spiral flute is precision-ground for efficient chip evacuation, smoother cutting action & reduced wear on the tool edge.

Favoured by machinists, fabricators & electricians, these drills provide reliable, repeatable results across a wide range of trade materials.

Pair your step drill with Drill Presses, enhance hole preparation using Reamers, maintain cutting performance with Equipment Care Kits & protect your setup with Safety Reflectors & Emergency Gear. Supported by Trade Support Solutions, Harlingen ensures dependable operation through every project.

► TiN coating for superior heat resistance
► Spiral flutes for smooth, fast drilling
► Multiple hole sizes in one precision tool
► Supported by Same Day Dispatch, Trade Pricing & Warranty & Parts Support

Drill smarter, not harder — choose Harlingen Step Drills for fast, precise & trade-grade multi-size hole cutting in every workshop.

Frequently Asked Questions

Yes — the TiN coating & spiral flute geometry make them ideal for stainless, mild steel, aluminium & copper alloys.

Yes — they’re suitable for both, though best results are achieved using a drill press or controlled speed setup.

Yes — the step design allows progressive drilling, removing the need for pilot holes in most materials.

es — with proper equipment, Harlingen Step Drills can be resharpened to extend tool life.

Brands

Harlingen

Harlingen