HSS Titanium Step Drill Bit 4-32/42mm – Metal & Wood Cone

SLADE HSS Titanium-Coated Step Drill Bit – Drill Any Material with Precision

Take the guesswork out of drilling clean, round holes with the SLADE HSS Titanium-Coated Step Drill Bit. Engineered from premium High Speed Steel (HSS) with a titanium nitride coating, this versatile cone drill bit handles everything from thin sheet metal and brass to wood and plastic — all with one compact tool. Whether you're a DIY enthusiast or a seasoned tradesperson, this step drill cone delivers professional-grade performance at every step.

Made in Mainland China.

Why Choose This Step Drill Bit?

• Titanium Nitride Coating: Dramatically reduces friction and heat build-up, extending bit life and keeping your drill cooler during prolonged use.
• High Speed Steel (HSS) Construction: Heat-treated and highly polished for superior hardness and durability, cutting through steel, brass, wood, and plastic with ease.
• Wide Size Range (4–32mm / 4–42mm): Multiple stepped sizes in a single bit eliminates the need to swap bits mid-job — each step is clearly laser-engraved with the diameter for instant reference.
• Two-Flute Spiral Groove Design: Dual flutes drive faster, smoother, and cleaner cuts while efficiently evacuating chips away from the cutting zone.
• 3-Sided Anti-Slip Shank: The triangular shank locks securely in your drill chuck to prevent slipping during operation — no more dangerous bit spin-out.
• Perfectly Round Holes Every Time: The self-centering tip eliminates the need for a pilot hole, saving you time and effort on every project.
• Compact & Lightweight (99mm Length): Easy to handle and store, fitting neatly in any toolbox or kit.

Specifications

What Can You Drill?

This step drill bit is perfectly suited for:

• Thin sheet metal and aluminium panels
• Electrical enclosures and junction boxes
• Brass fittings and plumbing fixtures
• Wood boards and MDF sheets
• Plastic, PVC, and acrylic panels
• DIY woodworking and metal fabrication projects

Safe Drilling Tips

Always wear appropriate personal protective equipment (PPE) when drilling — including safety glasses and gloves. For guidance on safe power tool use in the workplace, refer to OSHA's Power Tools Safety Guidelines.

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Learn more: Drill bit

Frequently Asked Questions

Q: What materials can this titanium-coated HSS step drill bit cut through?

A: This step drill bit is designed to cut through a wide variety of materials including steel, stainless steel, brass, aluminium, copper, wood, MDF, plastic, PVC, and acrylic. The titanium nitride (TiN) coating and HSS construction make it tough enough for both metal and non-metal materials.

Q: Do I need a pilot hole before using this step drill bit?

A: No! The self-centering pointed tip is designed to start drilling immediately without the need for a pre-drilled pilot hole, saving you time and effort on your project.

Q: What is the difference between the 4–32mm and 4–42mm versions?

A: Both bits start at 4mm and step up in increments. The 4–32mm version reaches a maximum hole diameter of 32mm, while the 4–42mm version goes up to 42mm. Choose based on the maximum hole size required for your application.

Q: How do I prevent the step drill bit from overheating during use?

A: The titanium nitride coating significantly reduces friction and heat generation. For extended drilling sessions, apply cutting oil or coolant to the bit and material surface, and avoid excessive pressure — let the bit do the work at a moderate, consistent speed.

Q: Will this bit fit my standard drill or drill press?

A: Yes. The 3-sided triangular shank is compatible with most standard keyed and keyless drill chucks, including cordless drills, electric drills, and drill presses. The anti-slip design ensures a secure grip in the chuck.