COMOWARE Cobalt Drill Bit Set- 15Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal
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15,192 reviews
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50+ products
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Jobber Drill Bits
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About COMOWARE Cobalt Drill Bit Set- 15Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal
Overall Feedback:
81% positive
74% appreciated its precise drilling accuracy, though 26% experienced deviation
I have commented on the poor quality control of the drill bits. The smaller bits were terrible while the larger bits seemed passable.
Nine out of thirteen bits were visibly way out of true.
77% praised for its fast drilling speed
Using these bits at high speed will not give the desired results, but with patience, they work exactly as expected.
74% liked its long-lasting durability, but 26% experienced frequent breakage
I have been using the product for over a year and have drilled through mountains of steel and aluminum without breaking any of the drill bits.
I find the drill bits to be dull and worthless, lacking durability.
The smaller drill bits broke easily, even on the first use, while the larger ones worked well and were sharp.
I am disappointed with the durability of the product. The case holding the bits is mangled and no longer functions.
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72% liked the comfortable grip design, while 28% found it slippery
The jobber-drill-bits have poor ergonomics as they do not cut at proper angles and tend to walk while drilling.
79% praised for its versatility in drilling various materials, though 21% had difficulty with metal
While drilling holes through stainless steel plates, the bits worked beautifully.
The smaller bits broke easily even without much force, while the larger ones worked well. It's a good value, but requires careful handling of the small bits.
The drill bits are worthless and dull like a toothpick. They are not durable as advertised. I had to throw them away within an hour of using them.
These drill bits are not suitable for drilling on steel or any other hard metals.
