25pc Drill Bit Set with Metal Storage Case Steel Punching Hole Opener Drill

Features:

• Tough Yet Flexible Cobalt Alloy Steel:

Made from high-quality cobalt alloy steel, these drill bits offer excellent toughness and wear resistance-ideal for precise drilling on thin materials without breaking or chipping easily.

• Ideal for Thin Metal, Wood & Plastic:

Perfectly suited for drilling thin iron sheets, aluminum, wood, and plastic. Delivers clean, efficient results for light to medium-duty tasks in workshops, home projects, or light manufacturing.

• Not for Stainless Steel or Thick Metals:

Not recommended for use on stainless steel, thick iron plates, or copper. These materials require higher hardness and different cutting geometry, which may damage the bits or reduce lifespan.

• Compatible with Multiple Drilling Devices:

Works seamlessly with various handheld and bench-top equipment, including cordless drills, electric drills, flat drills, drilling machines, bench drills, CNC centers, and milling machines.

• Practical Multi-Size Set in Portable Case:

Includes a variety of bit sizes to suit different drilling needs. Comes organized in a compact, easy-carry case for quick selection and storage, perfect for professionals and DIY users alike.

Usage Instructions:

• Recommended speed: 100-800 RPM. Use lower speeds for larger bit diameters.
• When using manual drills, adjust speed carefully to avoid damaging the bit.
• Do not strike or force the bit. Always secure the workpiece before drilling.
• Excessive movement during drilling may cause the bit to break.
• Clear out chips regularly if cutting becomes irregular.

Specification:

• Material: 4341 High Speed Steel
• Size: 18.6x11x5.2cm

What's in the box
25 x Drill Bits in Metal Storage Case