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It's great to be able to buy these drill sizes we most often break and are too small to use in a sharpener, in a "bulk"pack. Awesome. They are just normal drills, nothing exceptional so 'quality' just gets 4/5 from me. I recall the story where the USA engineers around the time of WWII made the smallest drill in the world at that time. Story goes they sent a sample to the UK where their engineers drilled a hole down the centre of it and sent it back.
I tried them on aluminum, and they worked great. Nice thing about these bits is that they are HSS, so they can be used with Dremel, all you need is chuck adapter: http://bit.ly/2mDttBf
1.0mm and 1.5mm drills incorrect sharpening angle, does not cut after sharpening ok. Also, 2.0mm and 2.5mm few incorrect sharpening angle. Figures re-sharpened drill left, the right is an unsharpened
Las brocas no están lo suficientemente afiladas. He molido uno de ellos, pero todavía no es adecuado para perforar acero. Como se describe, se puede utilizar para madera, plástico, aluminio. Espero un PCB también. Aún no lo he probado.
Lot of bits for good price. I tried them on aluminum, and they worked great. Nice thing about these bits is that they are HSS, so they can be used with Dremel, all you need is chuck adapter: http://bit.ly/2mDttBf
Muy buen producto
I've checked 8x drills (at least one of each size). Out of this limited set - 3 drills were not sharp. Yet I was able to find a reasonably sharp one of the same size quickly. So obviously QA issue. As could be expected ...
50 piezas en total y que el precio perfecto..
El producto llegó perfectamente como se pidió, sólo faltaba un taladro que es el medidor más pequeño, no sé qué número exactamente, pero es el más pequeño de todos,
No lo he probado todavía a este precio y la buena calidad que estoy plenamente satisfecho con esta compra. Gracias BANGGOOD por estas oportunidades. Todavía no lo he probado, pero a este precio y calidad, estoy satisfecho con esta compra. Gracias BANGGOOD por estas oportunidades.