Re: [mill_drill] Re: Undersized (5/8") drill bits...
- MCI have a 18v drill and it says made in China on it battery's made in Korea. All my power tools are Milwaukee But the rest it says made in Milwaukee,Wis. but the are olderGPFrom: MC Cason <farmerboy1967@...>
Sent: Monday, June 24, 2013 11:33 PM
Subject: Re: [mill_drill] Re: Undersized (5/8") drill bits...
Milwaukee power tools are made in Greenwood, Mississippi, about an
hour, and a half drive from me.
On 06/23/2013 12:11 PM, Guenther Paul wrote:
> I believe it used to be in Chicago. Just like Milwaukee power tools
> they are in china now
Associate Developer - Eagle3D, Created by Matthias Weißer
- BS328 part 1 (Specification for twist drills), which is equivalent to a number of ISO standards, gives the cutting diameter of a drill as measured across the lands at the outer corners as h8. Back taper is between 0.0002mm and 0.0008mm per millimetre linear distance from the outer corner towards the shank. The total back taper not to exceed 0.25mm. Below 6.0mm back taper is not a requirement.
I imagine that all other drill standards will be the same as, or very similar, with regards to these dimensions. Just divide by 25.4 for inch equivalents and you should be close to USA standards.
--- In email@example.com, Goran Hosinsky <hosinsky@...> wrote:
> Searching Ebay (the German one) for a missing drill size (metric) I find
> that they offer two types of HSS drills: Rolled or ground, the second
> one being the more expensive. Might there be a difference in precision
> between the two types - and could that be the explanation of the start
> of this thread?