111
people found this helpful, as of 2023
ranked #241,372 most helpful
out of 571,544,897 reviews
★☆☆☆☆
Do not buy these drill bits
Bought these to drill out a couple of broken bolts in patio furniture. Was unable to complete a single hole. Both of the 1/8" bits dulled very quickly despite the use of cutting oil as a lubricant and controlled RPM to avoid overheating the bits. Both bits then broke. These are advertised for use on hardened metal....clearly not the case. Poor quality and a complete waste of $20...these went back the day after I received them...if I could have given them 0 stars I would have...save your time and $$$...avoid these and buy something else.
the product in question
COMOWARE Cobalt Drill Bit Set- 29Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal, Stainless Steel, Cast Iron and Wood Plastic with Metal Indexed Storage Case, 1/16"-1/2"
4.5★ · 5,234 ratings, as of 2023