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Review on Chicago Latrobe Heavy Duty Cobalt Jobber Length: The Ultimate Tool for Tough Jobs by Jay Ngo

Revainrating 5 out of 5

VERY GOOD DRILL

Excellent drills - no complaints. It's definitely a bit above average. Haven't blunted any bits yet, with medium use, although I did break one of the smaller bits, but that's my fault. I know I've drilled over 100 holes in regular mild steel with one drill bit and it still works. The drill bits wobble a bit now and then, but maybe it's me or my drill press. can highly recommend this set. I was also able to buy replacement bits from Revain, one size fits all. If you are a homeowner or hardware store you will appreciate these parts. It's more of a professional bit set and the price reflects that, but you'll never regret buying them.

Pros
  • Manufactured to aerospace specification NAS 907 Type J Geometry with self-centering 135 degree tip penetrates hard material without a pilot hole and creates fine chips to reduce clogging and gold oxide is a finer oxide surface treatment than regular black oxide which used to identify cobalt steel tools; same performance as uncoated
Cons
  • Not bad, but...