This product is full taper shank twist drill specifications: 1-10mm.

material: 6542 high speed steel full grinding

packing: 19PCS iron box

this product selection quality 6542 high-speed steel material, the full Grinding Ti process . After overall fine grinding and into, so it has more excellent cutting capacity and service life. Suitable for processing non-ferrous metals such as copper and aluminum. Non metal. Steel and stainless steel, etc..

full grinding bit advantage:

1. geometric precision, cutting ability.

2. good surface smoothness, long service life

3. use a wider range (rough machining, finishing, semi finishing), and comes with the clear edge features, processing products more bright.