3Pcs HSS Straight Groove Step Drill Bit Set Nitride Black Hex Wood & Metal Hole Cutter 3-12mm, 4-20mm

Professional-Grade HSS Straight Groove Step Drill Bit Set – Precision Cutting for Wood & Metal

Upgrade your drilling experience with our 3Pcs HSS Straight Groove Step Drill Bit Set, designed for smooth, precise, and efficient hole-cutting in wood, metal, plastic, and more. Whether you're a DIY enthusiast or a professional, this Nitride Black Hex Wood Metal Hole Cutter ensures durability, speed, and clean cuts every time.

Why Choose Our Step Drill Bit Set?

✔ High-Speed Steel (HSS) Construction – Built for longevity and resistance to wear, these Hex Metal Hole Cutter bits stay sharp even under heavy use.

✔ Versatile Sizing (3-12mm, 4-20mm) – Cover multiple hole sizes in one go, eliminating the need for multiple drill bits.

✔ Nitride Black Coating – Enhances hardness and heat resistance, reducing friction for smoother drilling.

✔ Straight Groove Design – Ensures faster chip removal, preventing clogging and overheating.

✔ Hex Shank for Secure Grip – Prevents slipping in the drill chuck for stable, wobble-free performance.

✔ Multi-Material Compatibility – Works flawlessly on wood, aluminum, plastic, PVC, and thin metal sheets (up to 5mm thickness).

✔ Clear Step Markings – Each diameter is laser-etched for precision depth control.

✔ Ideal for DIY & Professional Use – Perfect for electrical work, carpentry, metal fabrication, and home repairs.

Specifications:

• Material: High-Speed Steel (HSS) with Nitride Coating

• Color: Black

• Sizes Included: 3-12mm, 4-12mm, 4-20mm

• Shank Type: Hex (Secure Chuck Fit)

• Application: Wood, Aluminum, Plastic, Insulating Boards

Package Includes:

• 3x HSS Straight Groove Step Drill Bits (Different Sizes)

Boost your drilling efficiency with this must-have Core Drilling Tools Set – a perfect addition to any workshop!