BL21A 21-Piece Assorted Set Black Oxide Metal Drill Bits with Included Case for Applications in Light-Gauge Metal, Wood, Plastic

Bits are sharp and work good. I haven’t broke any so far.

Great bits. Very sharp. It’s nice having new, sharp bits for a change.

This is well-made with great drill bit points. It has width good chisel edge and good web thickness for hard metal drilling. Drawback: marking on the drill bits and holder case is very hard to read. It needs a better casing and size marking.

Used several times and holding up well. Above normal quality

Love these bits. Broke another name brand and got these to replace, best choice by far.

These are great, I purchased them for my brother, I had already had a set of my own that I had purchased from a local store. He loves his as well

Hard to say anything negative except they are in the box securely. A little too securely. They are quite hard to get out. However for me the quality is really good ,exceptionally sharp. The flats at the base of the bit prevent the bit from turning in a normal drill. I've used drill bits without for the past 50 years and having to tighten the chuck while drilling a hole ,or the bit coming out of the chuck is no fun. Excellent quality for the money.

Bought these because I I’ve been through TWO DEWALT drill bit sets the 1/2 and 3/8 bits I use mainly for pilot holes for bolts heavy and it cuts like butter in wood but in metal ok slow using oil and I was drilling in both materials metal I have to speed up for the breakthrough or if you don’t you can risk of breaking the tip of and I tried them on a medium piece of metal and drilled through it slowly but surely probably just me and I was drilling through my older previous bits in metal FULL THROTTLE real fast mainly use them in my 1/2 Bauer 6.5 amp cored drill which I’ve had the thing burning grey smoke through some THICK steel and besides dewalt’s other quality bits sawzall grinder blades etc.. the last set I had the 1/2 tip in it was wore out QUICKLY after going slow to medium speed with the cored drill in some 4x4’s but the money was very worth it and just never tried Bosch tools ever I did considered trying it but the material is black oxide and I’ve heard titanium is an first entry coating and the black oxide coating is the next level up and then cobalt (if it’s industrial) bits preferably matco or professional drill bit brand I saw on Reddit people talking about on project farm and got these because on the scale he had on the screen Bosch was second in line and even Bosch sawzall blades are good and Milwaukee reason why I don’t but Milwaukee brand bits because you pay 50 dollars and up for an 20 piece set without an 1/2 bit I think but versatility it’s very good for wood on for metal like thin metal thick get industrial cobalt grade metal bits and I’m kinda a diy person but then a jerry rig heavy duty guy with stuff and odd in jobs and I try to get the best of stuff that I can afford but I give four stars because on metal the dewalt ones cut better and last longer but the dewalt have been going down hill and or getting crappy with me like cutting through thick industrial plates of steel so I tried these and they good maybe pretty good I guess there not like my favorite dewalt witch was mine favorite but it won’t hurt to try and people on Reddit rave about Bosch stuff overall I recommend these if you’re tired of the dewalt stuff not satisfying your mighty tasks not heavy duty use.

What can I say - they are what they say they are. Bosch is always good quality

I used these bits to drill through a steel I-beam. they worked well

Very happy with the drill bits and case it is very sturdy and the case will last a long time. My only problem is the numbering for the drill. Bit size is next to impossible to read. You obviously would need a magnifying glass. That is my only complaint because anytime you need to use a drill bit you have to take a measure to to make sure you have the correct size. This could be easily corrected with a sticker insert or some sort of label for the drill bits that is readable

Cut well

Good