Dormer A190 Jobber Drill Set - 25 Piece

This 25 piece set of steam tempered, precision engineered drills have each size embossed for easy ...

Best current price£82.12from Power Tools Direct

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Power Tools DirectDormer A190204 A190 No.204 Metric Hss Drill Set Of 25 1.0-13.0 X 0.5Mm
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RS Components Ltd- UKDormer 51 Piece Multi-Material Twist Drill Bit Set, 1mm to 6mm
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£84.58
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B&QB&Q - A190204 A190 No204 Metric Hss Drill Set Of 25 10-130 X 05mm Dorset204
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eBayDormer A190 No.204 Metric HSS Drill Set of 25 1.0-13.0 x 0.5mm DORSET204
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£91.50
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OnBuy.comHss A100 Metric Drill Set - 25 Piece 7320760030578
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£93.32
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Product Information

Full details

This guide is for anyone using the Dormer A190 Jobber Drill Set, a 25-piece set of precision-engineered drills. The key benefit is having a range of drill sizes readily available for general machining applications. Note that while the set offers a wide range of sizes, it's designed specifically for general machining, not specialized tasks.

All features

Model Part NumberA190 No 204
BrandDORMER

Extended Product Information

FAQs

What is the point angle of the drill bits?

The drill bits have a 118-degree point angle.

What materials can these drill bits be used on?

These drill bits are suitable for general machining applications on materials such as wood, mild steel, and aluminum.

What sizes are included in the set?

The set includes drill bits ranging from 1.0 mm to 13.0 mm, in 0.5 mm increments.

How do I identify the size of each drill bit?

Each drill bit has its size embossed on it for easy identification.

What is the purpose of the ABS plastic case?

The ABS plastic case is for convenient storage and portability of the drill bits.

Are these drill bits suitable for drilling into hardened steel?

These drills are designed for general machining. They may not be the best choice for hardened steel.

How should I store the drill bits?

Store the drill bits in the provided case to protect them from damage and keep them organized. Apply a light coating of oil for long-term storage.

Troubleshooting

Drill bit is breaking or dulling quickly.

Check the material you are drilling and ensure the correct drill bit speed and feed rate. Consider using cutting fluid for metalworking. Replace dull or damaged drill bits.

Drill bit is slipping in the chuck.

Tighten the chuck securely around the drill bit shank.

Hole is not straight or accurate.

Ensure the drill bit is perpendicular to the work surface before starting. Use a center punch to create a starting point for the drill bit.

Drill bit is overheating.

Reduce the drilling speed and increase the feed rate. Use cutting fluid or lubricant.

Pros and Cons

Pros

  • Wide range of sizes for various applications.
  • Durable HSS construction for long-lasting use.
  • Embossed size markings for easy identification.
  • Convenient and portable ABS plastic case.
  • Suitable for general machining tasks.
  • Manufactured to industry standards.

Cons

  • Not suitable for specialized drilling tasks.
  • Limited to general machining applications.
  • May require occasional sharpening with use.
  • The 0.5 mm increment may not suit all needs.
  • HSS may not be ideal for very hard materials.

Setup, Compatibility & Care

Setup:

  1. Unpack the drill set from its case.
  2. Familiarize yourself with the size range marked on each drill bit.
  3. Ensure your drill is compatible with the drill bit's shank size.

Compatibility:

The drill bits are compatible with most standard drill chucks. Always check that the drill bit is securely fastened before use.

Care:

  • After each use, clean the drill bits of any debris.
  • Store the drill bits in the provided case to prevent damage and to keep them organized.
  • Apply a light coating of oil to the drill bits if storing them for an extended period to prevent rust.
  • Sharpen or replace drill bits as needed to maintain optimal performance.

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