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  • 16/10/2017

    This set of metric drills performs as described. They are very sharp with a nice relief cut back for chip clearing. No trouble encountered doing metal drilling. Center punch your holes and use a lube oil and the bits should last a long time.. Bits are marked for size and show "HSS Co" stamped on shaft. I would definitely purchase these again.

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  • 26/09/2017

    They are delivered coated with some factory sticky oil for corrosion protection. It can be cleaned with some mineral spirits. This is normal for many unfinished metal bits. Do not remove the coating if you are not going to use the drills. The cutting faces are formed correctly and the length is standard. Last ages drilling plastics and wood. These cobalt drill bits should be your last set of drill bits if you learn how to sharpen them. They are very hard and will cut lots of metal before giving up.

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  • 05/02/2018

    This is the second set of these drills I have purchased, very pleased with them.

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  • 24/08/2018

    still basically a HSS drill bits when the coating wears off. for the price couldn't expect it to be full cobalt drill bits. one thing for sure they are really sharp. just don't use it on metals harder than stainless steels.

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  • 27/01/2018

    this is the second order and I think not the last. Now I have bought for my friend. Very good quality for this price. nice and powerful shape. strong drill. recommended.

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  • 07/09/2019

    My dad is very happy about them. Good quality. They drill metal like butter. Very good price to quality ratio. One drill in set wasn’t probably treated/coated cuz it has a different color.

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  • 15/03/2019

    Good quality drills

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  • NatVIP1

    Доставка около пяти недель с момента заказа. Пришли в обыкновенном конверте и пакете.Удивительно,что ничего не вылетело по дороге, но все дошло в целости. Я конечно не профессионал, но видно ,что заточка машинная. На вид внушают доверие, я думаю , что с металлом не будет проблем

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  • 12/10/2020

    very good

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  • 20/06/2020

    Well sharpened and with a relief grind on the back/trailing edge, flutes are sharp too for good chip evacuation in deeper holes. I'm expecting these to stay sharp much longer than normal HSS drills, they go through acrylic, aluminium, cast iron and mild steel with ease and no need for pilot holes, although more accurate with. If they're good enough for doubleboost then it's excellent for me.

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