► ITM | Spiral Step Drills

Fast, Controlled Hole Sizing for Trade Professionals When speed & accuracy matter, ITM spiral step drills deliver flawless hole cutting through metal, plastic & sheet materials. Their spiral flutes clear chips quickly, reducing heat & preventing burrs for clean, round holes every time. Trusted by electricians, fabricators & installers, these...

Fast, Controlled Hole Sizing for Trade Professionals

When speed & accuracy matter, ITM spiral step drills deliver flawless hole cutting through metal, plastic & sheet materials. Their spiral flutes clear chips quickly, reducing heat & preventing burrs for clean, round holes every time. Trusted by electricians, fabricators & installers, these drills give professionals smooth performance & long service life.

Each bit is crafted from premium high-speed steel or titanium-coated alloy, engineered for low friction & consistent cutting under load. Their multi-step design eliminates the need to swap drill bits, saving time during repetitive hole sizing. For precision alignment & steady feed, trades often pair them with Power Tools to maintain constant RPM during cutting.

When not in use, spiral step drills are best protected in Tool Boxes & Bags designed to prevent edge damage. Workshops storing multiple sizes keep them sorted in Tool Organizers & Inserts for fast identification. For teams on the move, Rolling Site Boxes & Chests ensure safe transport across job sites without losing calibration or finish quality.

What’s in This Collection:

► Holemaker Spiral Flute Step Drill Set, 3 Piece, 4–20mm / 5–25mm / 6–30mm
‣ Multi-size kit covering most electrical, fabrication & maintenance hole ranges

► Holemaker Step Drill Spiral Flute, 9 Steps, 3mm Step Length, 4–20mm
‣ Compact precision bit for control panel & light-gauge steel applications

► Holemaker Step Drill, Spiral Flute, 12 Steps, 6mm Step Length, 6–38mm
‣ Ideal for large holes in thicker materials with stable feed control

► Holemaker Step Drill Spiral Flute, Electricians Sizes, 3mm Step Length, 6–32mm
‣ Designed for conduit, switchboard & electrical fitting installations

► Holemaker Step Drill Spiral Flute, 13 Steps, 3mm Step Length, 6–30mm
‣ Smooth, accurate cutting for sheet metal & composite panels

► Holemaker Step Drill Spiral Flute, 11 Steps, 3mm Step Length, 5–25mm
‣ Optimised for precision work with minimal chatter or vibration

► Holemaker Step Drill Spiral Flute, 13 Steps, Varied Step Length, 7–40.5mm
‣ Heavy-duty step pattern for wider diameter range & faster hole expansion

 

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Drill Smarter, Smoother & Stronger

ITM spiral step drills are trusted across Australia for their clean performance & unmatched reliability. Their precision-ground cutting edges bite evenly through sheet steel, ensuring burr-free finishes & perfect sizing. When working across multiple materials, they eliminate the need for pilot drilling — a huge advantage for trade crews under time pressure.

Professionals supplied through Industrial Shed Somerville VIC 3912 rely on these drills daily in fabrication shops, switchboard manufacturing & metal construction. Combining them with Drill Accessories ensures optimal feed control, while Measuring Tools confirm diameter accuracy after each pass.

For finishing or edge preparation after drilling, Grinding & Cut-Off Wheels smooth surfaces & remove burrs. To keep all bits ready for use, Storage Cabinets organize tools by size & type, while Workbenches provide a stable base for precision drilling setups.

Each ITM step drill is built for trade durability & backed by Industrial Shed’s Trade Guarantee, supported with Same-Day Dispatch for fast delivery & Tool Equipment Care for continued tool maintenance & calibration.

► Spiral flutes for faster chip removal & cooler cutting
► Titanium-coated & HSS options for extended tool life
► Multi-step design eliminates bit changes & saves time
► Supported locally with same-day dispatch & professional care

Frequently Asked Questions

They’re ideal for mild steel, stainless, aluminium & PVC — perfect for trade fabrication or electrical installation.

Spiral flutes eject chips faster, run cooler & create smoother edges under load.

Yes — using Cutting Fluids & Lubricants extends bit life & improves cutting speed.

Smaller diameter models can be used with standard or magnetic base drills using adaptors.

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