I just replaced my Number Set of Drills and am some what confussed by what I got. The set I had was a hand-me-down so I didn't have much confidence in sizes of the drill in the set. However, I decided to check the diameters of the drills in the new set against the diameter they are

In almost all of the cases, the actual diameter of the drill was about 0.002" to 0.003" undersize for that specific drill. For example, the #29 drill is suppose to have a diameter of 0.1360", but the #29 drill that came in my set has a diameter of 0.133". There are a few drills that are off by as much as 0.005". The drill in the #6 slot has a diameter of 0.199" while the #6 drill shoud have a diameter of 0.204". Is this suppose to be the case? Are all the drills slightly under sized or is it a function of the makers of the set of drills I purchased?

The set does have other problems as the drills in the #48 and #49 slots have identical diameter of 0.075". The same was true of #9 and #10 drills with each having the same diameter of 0.193". The drills in slots # 60 and #58 have the same diameter of 0.040" and the drill in the #59 slot has a diameter of 0.038"!

I would like to know if I'm just picking at nits or should I have invested a lot more money and gotten a set of drills made in the USA? Appreciate any help. Thanks.

Bill

__suppose__to be.In almost all of the cases, the actual diameter of the drill was about 0.002" to 0.003" undersize for that specific drill. For example, the #29 drill is suppose to have a diameter of 0.1360", but the #29 drill that came in my set has a diameter of 0.133". There are a few drills that are off by as much as 0.005". The drill in the #6 slot has a diameter of 0.199" while the #6 drill shoud have a diameter of 0.204". Is this suppose to be the case? Are all the drills slightly under sized or is it a function of the makers of the set of drills I purchased?

The set does have other problems as the drills in the #48 and #49 slots have identical diameter of 0.075". The same was true of #9 and #10 drills with each having the same diameter of 0.193". The drills in slots # 60 and #58 have the same diameter of 0.040" and the drill in the #59 slot has a diameter of 0.038"!

I would like to know if I'm just picking at nits or should I have invested a lot more money and gotten a set of drills made in the USA? Appreciate any help. Thanks.

Bill

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