Precision-crafted step drill bit set designed for fast, clean hole cutting in metal, wood and plastic. This 3-piece HSS straight groove set with nitride black finish and hex shank delivers durability, reduced slippage and smooth cutting for DIY and professional jobs.

Specifications:

• Material: High speed steel (HSS)
• Finish / Color: Nitride black
• Size: 3-12 mm (0.12-0.47 in), 4-12 mm (0.16-0.47 in), 4-20 mm (0.16-0.79 in)
• Length: 55 mm (2.17 in), 74 mm (2.91 in), 77 mm (3.03 in)
• Type: Step / Core drill bit
• Shank: Hex shank for anti-slip chucking
• Application: Drilling and hole reaming in wood, aluminum, plastic boards and insulating boards up to approximately 5 mm (0.20 in) thickness
• Certification: CE
• DIY Category: Woodworking / General metalworking
• High-concerned chemical: None
• Customizable: Yes
• Package Included: 3 x HSS straight groove step drill bits (3-piece set)

Features:

• Made from high-quality HSS for hardness and wear resistance
• Nitride black finish improves durability and reduces wear
• Straight groove and dual-groove designs for faster, smoother cutting
• Face shank prevents slippage in the chuck; hex shank for secure grip
• Each step is clearly marked for easy size identification and precise cuts

Notes: Please allow slight measurement variations due to manual measurement. Actual product color may vary slightly due to monitor differences.

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Safety Notes:

Sharp cutting edges. Always wear safety goggles and appropriate gloves when drilling to protect eyes and hands.

Secure the workpiece before drilling and use correct speed and drill settings for the material.

Keep tools and small parts out of reach of children to prevent injury or choking hazards.