I'm very satisfied. Compared to cheap tap drill bits from local store (still more expensive than this set from Banggod) these bits are excellent. I tried one of them on a piece of iron (see attached pictures) where bits from local store weren't of any help and the result is perfect. I'm just a DYI hobist, not professional, so I can rate only based on my limited experience, but I think at least for occasional use these bits will be more than suitable. Just to be clear I used the bit in electric drill to drill a hole only, then removed the bit, put into handle and did the taping slowly by hand. It went without applying force, the bit was sharp and even I proceeded carefully turning the bit backward few times, it wasn't necessary and it would work also in one go.

I'm very satisfied. Compared to cheap tap drill bits from local store (still more expensive than this set from Banggod) these bits are excellent. I tried one of them on a piece of iron (see attached pictures) where bits from local store weren't of any help and the result is perfect. I'm just a DYI hobist, not professional, so I can rate only based on my limited experience, but I think at least for occasional use these bits will be more than suitable. Just to be clear I used the bit in electric drill to drill a hole only, then removed the bit, put into handle and did the taping slowly by hand. It went without applying force, the bit was sharp and even I proceeded carefully turning the bit backward few times, it wasn't necessary and it would work also in one go.

I'm very satisfied. Compared to cheap tap drill bits from local store (still more expensive than this set from Banggod) these bits are excellent. I tried one of them on a piece of iron (see attached pictures) where bits from local store weren't of any help and the result is perfect. I'm just a DYI hobist, not professional, so I can rate only based on my limited experience, but I think at least for occasional use these bits will be more than suitable. Just to be clear I used the bit in electric drill to drill a hole only, then removed the bit, put into handle and did the taping slowly by hand. It went without applying force, the bit was sharp and even I proceeded carefully turning the bit backward few times, it wasn't necessary and it would work also in one go.

Fast shipping and normal delivery time. Product arrived well packaged and as described in selling page. The set looks like good quality but i haven't test it. I do like the containing box ... Look forward to use it in my projects. A good product at a good price with Banggood good service. Satisfied !

Fast shipping and normal delivery time. Product arrived well packaged and as described in selling page. The set looks like good quality but i haven't test it. I do like the containing box ... Look forward to use it in my projects. A good product at a good price with Banggood good service. Satisfied !

Fast shipping and normal delivery time. Product arrived well packaged and as described in selling page. The set looks like good quality but i haven't test it. I do like the containing box ... Look forward to use it in my projects. A good product at a good price with Banggood good service. Satisfied !

Order arrived in good time. Packaging was great, nice size of drill bit's with the addition of threading whatever you drill, nice varied sizes of bit's, really impressed in the quality and box that came in the package. I would recommend this store in a heart beat.

Order arrived in good time. Packaging was great, nice size of drill bit's with the addition of threading whatever you drill, nice varied sizes of bit's, really impressed in the quality and box that came in the package. I would recommend this store in a heart beat.

Order arrived in good time. Packaging was great, nice size of drill bit's with the addition of threading whatever you drill, nice varied sizes of bit's, really impressed in the quality and box that came in the package. I would recommend this store in a heart beat.

esta bien good :)

esta bien good :)

esta bien good :)

Product is packed wery well, better than expected. I'm not tried yet how it's working.

Product is packed wery well, better than expected. I'm not tried yet how it's working.

Product is packed wery well, better than expected. I'm not tried yet how it's working.

Excellent value for the low price! These work great if you just respect the following: Don't run at high revs - use a hi-torque cordless with a brake. Repect the short length drill part - don't try to thread anything thicker than the drill's free length. These drill diameters are somewhat small, achieving a really deep thread depth, that'll be tough on the tap, your drill and your wrists (if handheld). I'll personally only use them on cast iron, cast aluminium and mild steel. I'd never ever let the smaller ones bottom out into the purported "deburr/ countersink" feature - jeez - Marketing BS. For heavier alloys I'd still use predrilling to lesser thread percentage and continue using my old straight-fluted taps.

Excellent value for the low price! These work great if you just respect the following: Don't run at high revs - use a hi-torque cordless with a brake. Repect the short length drill part - don't try to thread anything thicker than the drill's free length. These drill diameters are somewhat small, achieving a really deep thread depth, that'll be tough on the tap, your drill and your wrists (if handheld). I'll personally only use them on cast iron, cast aluminium and mild steel. I'd never ever let the smaller ones bottom out into the purported "deburr/ countersink" feature - jeez - Marketing BS. For heavier alloys I'd still use predrilling to lesser thread percentage and continue using my old straight-fluted taps.

Excellent value for the low price! These work great if you just respect the following: Don't run at high revs - use a hi-torque cordless with a brake. Repect the short length drill part - don't try to thread anything thicker than the drill's free length. These drill diameters are somewhat small, achieving a really deep thread depth, that'll be tough on the tap, your drill and your wrists (if handheld). I'll personally only use them on cast iron, cast aluminium and mild steel. I'd never ever let the smaller ones bottom out into the purported "deburr/ countersink" feature - jeez - Marketing BS. For heavier alloys I'd still use predrilling to lesser thread percentage and continue using my old straight-fluted taps.

The product with a little case and well packed. It looks like a good tool, I will test and post again.

The product with a little case and well packed. It looks like a good tool, I will test and post again.

The product with a little case and well packed. It looks like a good tool, I will test and post again.

Отличное качество, заточка хорошая. Пробовал пока на пластике и алюминии. Доволен что заказал.

Отличное качество, заточка хорошая. Пробовал пока на пластике и алюминии. Доволен что заказал.

Отличное качество, заточка хорошая. Пробовал пока на пластике и алюминии. Доволен что заказал.

Thank you so much for everything! Direct Shipment! Qualitative tools for amateur use are very good!

Thank you so much for everything! Direct Shipment! Qualitative tools for amateur use are very good!

Thank you so much for everything! Direct Shipment! Qualitative tools for amateur use are very good!

Nice small packaging, oil por rust protection

Nice small packaging, oil por rust protection

Nice small packaging, oil por rust protection