Norseman Drill Bits 44170 Ultra Dex Type 240-UB 135 Degree Split Point Magnum Super Premium Jobber Drill Set
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Jobber Drill Bits
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About Norseman Drill Bits 44170 Ultra Dex Type 240-UB 135 Degree Split Point Magnum Super Premium Jobber Drill Set
Overall Feedback:
96% positive
96% appreciated its precise drilling accuracy
I was impressed with the accuracy of the drill bits while drilling pin holes in hardened 1084-15n20 Damascus for knife scales.
I have been using the drill bits for two years and they are still sharp. I haven't broken or lost any of them yet.
95% praised for its fast drilling speed
Using the half inch bit, I found that it went through the steel like butter and was fast.
96% liked its long-lasting durability, but 4% experienced frequent breakage
I have been using these drill bits for a year in my fab shop and am extremely happy with their performance.
None of my drill bits have broken or needed sharpening yet.
I took off a star because the bits are not centered.
94% liked the comfortable grip design
The drill bits come with a well-built, handy carrying case.
92% found it resistant to heat buildup, but 8% experienced thermal damage
I have used the drill bits on various metals and plastics and they worked well.
With proper lubrication, I've noticed that the bit starts blueing from small amounts of heat.
96% praised for its versatility in drilling various materials, though 4% had difficulty with metal
I have drilled through various metals and materials using these drill bits and they have worked well for me.
For drilling metals, it's all about proper speed, good lubricant, and taking care of the bits. HSS bits can be expensive.
I work with wood, steel or aluminum and have been using the drill bits for two years without any issues.
These bits are suitable for very soft plastic or aluminum.
