Dapetz HSS Mini Micro Drill Bit Set - 20 Piece

This 20-piece micro drill bit set features precision HSS twist drill bits ranging from 0.3mm to 1....

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B&QB&Q - 20 Piece Hss Mini Micro Drill Bit Set 0.3-1.6mm Precision Twist Drill Bits For WoodPlastic & Diy
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Product Information

Full details

The Dapetz HSS Mini Micro Drill Bit Set is an essential tool kit for model makers, hobbyists, and precision DIY enthusiasts who require high-accuracy holes in small-scale projects. Featuring 20 individual High-Speed Steel (HSS) twist bits ranging from 0.3mm to 1.6mm, this set offers excellent versatility for working with wood, plastics, and light craft materials. While these bits are highly effective for fine detail work, they are fragile due to their small diameter and require a steady hand to prevent snapping during operation.

All features

Model Part NumberDP01062
BrandDapetz

Extended Product Information

FAQs

Can I use these bits on steel or aluminum?

These bits are primarily designed for wood and plastic. Using them on hardened metal will likely result in the bits dulling instantly or snapping.

What is the smallest bit in the set?

The set starts at 0.3mm.

Do I need a special tool to use these?

Yes, a precision pin vise or a rotary tool with a micro-collet/chuck is required to hold bits this small.

Are these bits replaceable if one breaks?

This is a fixed 20-piece set; individual replacement bits are not provided, so handle the smallest sizes with extra care.

How do I identify the bit sizes?

The storage case is typically indexed with the bit diameters printed next to each slot for easy identification.

Troubleshooting

Bit slipping in the chuck

Ensure you are using a precision pin vise or collet designed for micro-diameter shanks; standard large chucks cannot tighten sufficiently on 0.3mm bits.

Bit snaps during drilling

Reduce side-to-side movement and apply less downward pressure. Ensure you are drilling perfectly vertical to the surface.

Hole is larger than the bit size

This is likely caused by the bit wobbling; use a slower manual rotation or check that the bit is seated perfectly centered in your tool.

Pros and Cons

Pros

  • Extremely compact size range for intricate work
  • Durable High-Speed Steel material
  • Well-organized storage case included
  • Wide variety of diameters in one set

Cons

  • Small bits are prone to snapping if lateral pressure is applied
  • Not suitable for drilling through hardened metals
  • Requires high-precision pin vise or small motor tool

Setup, Compatibility & Care

To use this set, ensure your tool has a chuck capable of gripping bits as small as 0.3mm. A standard 1/4-inch hex drill will likely be incompatible without an additional micro-collet or precision chuck adapter. When finished, wipe bits clean of dust or shavings and store them back in their designated slots in the provided case. Because these bits are susceptible to rust if exposed to moisture, consider keeping a small silica gel packet in the storage box if you live in a humid climate.

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