Description
The Procat step drill set contains three titanium-coated step drill bits in sizes 4–12 mm, 4–20 mm and 4–32 mm. The bits are made of durable 4241 high-speed steel (HSS) and coated with titanium, which improves heat resistance, reduces friction and significantly extends the life of the bits.
Step drill bits are particularly suitable for drilling thin metal sheets, plastics and aluminium surfaces. The stepped design lets you make several different hole sizes with the same bit without pilot drilling. The sharpened tip geometry makes starting the hole stable and clean without “walking”.
The three-flat shank improves how well the bit stays in the drill chuck. The set comes in a practical case that makes storage and transport easier.
Intended use:
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Metal sheets and electrical installations: Excellent for making openings for distribution boards and cable entries in thin metal sheets. The steps let you drill several sizes without changing bits.
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Plastic covers and junction boxes: The titanium-coated bit in particular works cleanly in hard plastic materials. No cracking or melting during drilling.
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Installation and HVAC work: The size range of 4–32 mm covers all common pipe and penetration sizes, so the set suits the varied needs of installers on site.
Package contents:
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1 x step drill bit 4–12 mm
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1 x step drill bit 4–20 mm
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1 x step drill bit 4–32 mm
Features:
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Material: 4241 high-speed steel (High-Speed Steel) with good hardness and wear resistance
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Coating: Titanium coating (TiN), which lowers friction and improves heat resistance
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Drilling ranges: 4–12 mm, 4–20 mm, 4–32 mm: 3 bits cover all the most common sizes
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Steps: Clear drilling steps every 2 mm, easy to control
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Shank type: 3-flat shank that prevents spinning in the drill chuck
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Suitable materials: Sheet steel, aluminium, plastic, thin brass and copper
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Compatibility: Fits hand drills and pillar drills
Procat step drill set instructions for use:
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Choose a suitable drill bit according to the final diameter of the hole.
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Fit the bit to the drill and make sure the shank is seated properly.
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Position the bit accurately and start drilling at low speed.
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Use cutting fluid when drilling metal, as it extends the life of the bit.
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Clean the bits after use and store them in the case.
How to choose the right step drill bit:
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Material: 4241 HSS is well suited to general use in metal and plastic
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Coating: A titanium coating protects the bit when it heats up and makes drilling smoother
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Size class: Choose a suitable set according to the hole size range; this set covers 4–32 mm
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Chuck: Check that the shape of the shank is compatible with the drill you use
Why choose the Procat step drill set:
Procat’s titanium-coated 3-piece step drill set offers an excellent combination of performance and durability. 4241 steel and TiN coating guarantee precise, clean drilling even in demanding materials. The stepped design makes changing the hole size easy and efficient without changing bits.
Warnings:
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Always wear safety glasses and protective gloves
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Do not use the bits at too high a speed, as this causes overheating
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Cutting fluid is recommended when drilling metal
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Keep out of the reach of children
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Check the condition of the bit before use; a damaged bit can be dangerous
Frequently asked questions (FAQ):
Are these bits compatible with cordless drills?
Yes, the three-flat shank fits the most common chucks.
Can these be used to drill stainless steel?
Not recommended for stainless steel; for that, we recommend harder Cobalt/HSS-Co bits.
Does the set include a storage case?
Yes, the set comes in a compact case.




