XtremepowerUS 17 Pc Drill Bits Chisel SDS Plus Rotary Hammer Bits Concrete Rotary Hammer Drill Groove Set SDS Plus Case

Bought a fractional set and received metric bits. I am keeping them but not what I wanted. Had to measure each one and mark in the case the fractional equivalent. Also, each one is about .1mm larger than the marked size on the bit. Measured with a calibrated caliper. Not sure if this is an error or by design, just strange. I checked and another set I have is similarly oversized, maybe a standard process for masonry bits?

nice

Muy buen articulo y a un buenisimo precio

High quality but I knock of one start because of poor labelling and/or description. I knock of a another start because these don't seem terribly precise to any size conventions. But I can live with those defects. If the supplier puts in a better description to explain I would bump up to 4 starts because the bits work great. These are oddly sized without any meaningful labels. To figure out size I waisted a lot of time measuring with my caliper and doing fraction math! Actual sizes are very different than what is advertised. Or may there were just made very imprecisely. They do not match conventional metric bits either. In contrast, my Dewalt drill bits are exactly as advertised. Precision might not matter as much for masonry holes, but still you don't want to make your drill holes too big.In comparison to what was stated this what I actually got: one 3/16" x 60 mm, one 3/16" x 110 mm, four 7/32" x 110 mm (was that supposed to 3/8"?), one 37/128" x 60 mm (supposed to be 1/4"?), one 11/32 x 110 mm (supposed to be 5/16"?), one 11/32 x 206 mm (supposed to be 5/16"?), one 25/64" x 206 mm (supposed to be 3/8"?), one 59/128" x 160 mm (supposed to be 1/2"?) and one 65/128" x 210 mm (supposed to be 9/16"?). I'm using the convention the length is how deep drill bit can drill, which matches the smaller ones. There was supposed to be a 9/16" x 260 mm. That only works if you measure from end to end. So they are changing conventions. The case could not fit a 260 mm bit if following just the drill depth.On positive side Quality seems high and for the $32.95 I paid, including all those bits that's a great deal. But I notice the prices is much higher, more than double, after just a week. I tried the 1/4 inch on brick with a Makita HR2475 (which I got for a steal at Ebay), and it was like going through butter!

Good durable product for reasonable cost.

The product is falsely represented in the description. First, they are a "Stark" named brand from China. Second, they are Not SAE sized as described and are in Metric size. The point is why do they not just tell the truth about what the product is ??Lastly, the grade or quality of the drills are Not that of a Bosch drill bit at the Carbide tip. So far, one drill tip has chipped on my first 1/2" or 12mm hole on a concrete floor.

Defiantly metric but all I needed was something to chip up concrete and drill holes to make it easier and it did the job to 4 stars for being decent, good price, and having a little case lol and minus 1 star for being advertised as standard and being metric

Very impressed with this product , did an entire job with one drill bit . drilled last hole just as good as the first one ! Used chisels some , seem to be very good also .

priced right for those needing these drill bits just once and a while. Dont think they would hold up if used on a daily basis however,,,, you get what you pay for, in this case, good deal

Very high quality bits at an outstanding price

Delivered on time and just as advertised/expected.

Good working and quality

Nice product.