Procat Sheet Metal Drill Set 3-piece 4-12, 4-20, 4-32 mm

The Procat step drill bit set includes three titanium-coated step drill bits in sizes 4–12 mm, 4–20 mm, and 4–32 mm. The bits are made from durable 4241 high-speed steel (HSS) and coated with titanium, which boosts heat resistance, cuts down friction, and really extends their lifespan.
Step drill bits are great for drilling thin metal sheets, plastics, and aluminum surfaces. The stepped design lets you make multiple hole sizes with the same bit without pre-drilling. The sharpened tip geometry keeps the hole start steady and clean without wandering.
The three-sided shank improves the bit's grip in the drill chuck. The set comes in a handy case that makes storage and carrying easy.

Uses:

Metal sheets and electrical installations: Perfect for making cutouts in electrical panels and cable pass-throughs in thin metal sheets. The steps let you drill multiple sizes without swapping bits.

Plastic covers and junction boxes: The titanium coating works cleanly on tough plastics. No cracking or melting during drilling.

Installation and HVAC jobs: The 4–32 mm range covers all common pipe and pass-through sizes, so the set fits a wide range of on-site needs for installers.

What's included:

1 x Step drill bit 4–12 mm

1 x Step drill bit 4–20 mm

1 x Step drill bit 4–32 mm

Features:

Material: 4241 high-speed steel (HSS) – good hardness and wear resistance

Coating: Titanium coating (TiN) – reduces friction and improves heat tolerance

Drilling ranges: 4–12 mm, 4–20 mm, 4–32 mm – 3 bits cover all the most common sizes

Steps: Clear drilling steps every 2 mm – easy to control

Shank type: 3-sided shank – prevents slipping in the drill chuck

Suitable materials: Steel sheet, aluminum, plastic, thin brass, and copper

Compatibility: Works with handheld drills and pillar drills

Procat Sheet Drill Set instructions:

Pick the right drill bit based on your final hole diameter.

Secure the bit in the drill – make sure the shank fits snugly.

Position the bit exactly where you want it and start drilling at a low speed.

Use cutting fluid when drilling metal – it extends the bit's life.

Clean the bits after use and store them in the case.

How to choose the right step drill bit:

Material: 4241 HSS works well for general use in metal and plastic

Coating: Titanium coating protects the bit from heat and makes drilling smoother

Size range: Choose the set based on your hole size needs – this one covers 4–32 mm

Chuck: Check that the shank shape matches your drill

Why choose the Procat Sheet Drill Set:
Procat's titanium-coated 3-piece sheet drill set offers a great mix of performance and durability. The 4241 steel and TiN coating ensure precise, clean drilling even in tough materials. The stepped design makes switching hole sizes easy and efficient without changing bits.

Warnings:

Always wear safety glasses and gloves

Don't use the bits at too high a speed – it causes overheating

Coolant recommended for metal drilling

Keep out of reach of children

Check the bit's condition before use – a damaged bit can be dangerous

Frequently asked questions, FAQ:
Are these bits compatible with cordless drills? Yeah, the three-sided shank fits most common chucks.
Can you drill stainless steel with these? Not recommended for stainless – we suggest harder Cobalt/HSS-Co bits for that.
Does the set include a storage case? Yes, it comes in a compact case.