Drill America DWDN9/16 9/16" High Speed Steel Black Oxide Drill Bit
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Jobber Drill Bits
Experiential insights by users
About Drill America DWDN9/16 9/16" High Speed Steel Black Oxide Drill Bit
Overall Feedback:
71% positive
69% appreciated its precise drilling accuracy, though 31% experienced deviation
The drill bits are not precise as the tip angle varies too much and they are out of round.
I have noticed that the drill bit deforms during normal drilling, even though it shouldn't.
66% praised for its fast drilling speed, while 34% found it slow
I broke 4 bits on about 8 holes and another bit bent while drilling. This indicates that the drilling speed of the jobber-drill-bits is not good.
I was unable to cut through the metal with the drill bit, which caused it to press into the metal and deform the hole, ultimately damaging the part.
69% liked its long-lasting durability, but 31% experienced frequent breakage
Jobber-drill-bits break easily, especially for deeper holes and are not durable.
The drill bits have a varying tip angle, which makes them imprecise.
I have complained that the drill bits are not durable enough and broke while drilling. I had to replace them because of their poor durability.
I was unable to cut the metal with the drill bit, instead it pressed into the metal, deformed the hole, and damaged the part.
68% liked the comfortable grip design, while 32% found it slippery
I have noticed that drill bits tend to break at the transition between the shank and flutes after twisting and distorting.
I tried to use the drill bit to cut through the metal, but it only deformed the hole and damaged the part.
I have been frustrated with the jobber-drill-bits as they broke 4 bits on about 8 holes and one bit didn't even get to complete a hole. The other bit bent while drilling.
Rephrased: I have been frustrated with the jobber-drill-bits as they broke 4 bits on about 8 holes and one bit didn't even get to complete a hole. The other bit bent while drilling.
67% found it resistant to heat buildup, but 33% experienced thermal damage
I couldn't cut through the metal with the drill bit, it just pressed into the metal, deformed the hole, and damaged the part.
These drill bits deform with normal drilling.
67% praised for its versatility in drilling various materials, though 33% had difficulty with metal
These drill bits are not versatile and should only be used for drilling wood.
I was unable to cut the metal with the drill bit, it simply pressed into the metal, deformed the hole, and damaged the part.
