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3Pcs HSS Straight Groove Step Drill Bit Set – 3‑12mm, 4‑12mm, 4‑20mm
Upgrade your drilling arsenal with our premium HSS Straight Groove Step Drill Bit Set. Designed for precision and durability, these nitride‑coated, black‑hexed drill bits deliver flawless hole cutting in both wood and metal. Whether you’re a DIY enthusiast or a professional tradesperson, this versatile set guarantees clean, accurate cores every time.
Key Highlights
- Versatile Sizes: Includes 3‑12mm, 4‑12mm, and 4‑20mm steps for a wide range of applications.
- High‑Speed Steel (HSS) Construction: Offers exceptional strength and long‑lasting performance.
- Nitride Black Coating: Enhances wear resistance and reduces friction for smoother drilling.
- Precision Groove Design: Ensures consistent depth control and minimal burr formation.
- Hex Handle: Provides a secure grip and torque for effortless operation.
- Dual‑Material Compatibility: Ideal for drilling clean holes in both wood and metal.
- Compact Set: Packaged in a durable case for easy storage and portability.
Technical Specifications
• Material: High‑Speed Steel (HSS)
• Coating: Nitride Black
• Sizes: 3‑12mm, 4‑12mm, 4‑20mm
• Hex Handle: 1/4” standard fit
• Weight: 3.5 oz (total)
• Ideal For: Core drilling, woodwork, metal fabrication, hobby projects
Why Choose This Step Drill Bit Set?
Our step drill bits combine precision engineering with rugged construction, making them the go‑to choice for anyone who demands consistent, high‑quality results. The nitride coating reduces heat buildup, extending tool life, while the straight groove design guarantees smooth, burr‑free cuts—perfect for intricate woodworking or precise metal work.
Elevate your projects with this essential drilling tool set—order now and experience the difference in performance, durability, and ease of use.
Price: Original price was: $ 5.60.$ 2.74Current price is: $ 2.74.