You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
How is a Drill Press Measured?
- Thread starter BJ42LX
- Start date
DocsMachine
Well-known member
- Joined
- Sep 16, 2006
- Messages
- 1,857
Technically, the largest disc the drill press can drill to the center of.
In other words, the throat depth- the distance between the center of the spindle and the front edge of the column. A drill with a 6" spacing would be a 12" drill, 8" would be a 16" drill, 10" is a 20" drill, etc.
And it's not necessarily new Harbor Freight doublespeak either; my circa-1909 Rockford drill press has "20 in. Drilling Machine" cast right into the column, and it has a 10" actual throat.
Doc.
In other words, the throat depth- the distance between the center of the spindle and the front edge of the column. A drill with a 6" spacing would be a 12" drill, 8" would be a 16" drill, 10" is a 20" drill, etc.
And it's not necessarily new Harbor Freight doublespeak either; my circa-1909 Rockford drill press has "20 in. Drilling Machine" cast right into the column, and it has a 10" actual throat.
Doc.
KrisKustomPaint
Well-known member
- Joined
- Sep 8, 2010
- Messages
- 99
Technically, the largest disc the drill press can drill to the center of.
In other words, the throat depth- the distance between the center of the spindle and the front edge of the column. A drill with a 6" spacing would be a 12" drill, 8" would be a 16" drill, 10" is a 20" drill, etc.
And it's not necessarily new Harbor Freight doublespeak either; my circa-1909 Rockford drill press has "20 in. Drilling Machine" cast right into the column, and it has a 10" actual throat.
Doc.
Indeed, same as swing on a lathe.
Zebu Fellenz
Well-known member
Twice the distance between center of spindle and edge of column.
Jim Stabe
Well-known member
The first answer is correct. It is the distance from the spindle center to the column, not twice that distance.Twice the distance between center of spindle and edge of column.
logical
Well-known member
Awsome, we have a genuine internet blogger among us.
Sent from my SM-G950U using Tapatalk
Sent from my SM-G950U using Tapatalk
MushCreek
Well-known member
Indeed, same as swing on a lathe.
Not everyone knows this. Many years ago, I went to look at an old lathe with a '12" swing'. It turned out to have a 24" swing! The price was right, but it was too big a monster for my needs. I'm glad ads these days have pictures.
The first answer is correct. It is the distance from the spindle center to the column, not twice that distance.
^^^Pretty sure this is incorrect.^^^
All the other post however are correct and saying the same thing. Essentially a 20in press will have 10in between center of chuck and edge of column allowing you to drill a hole in the center of a 20in circle
The first answer is correct. It is the distance from the spindle center to the column, not twice that distance.
You may be correct in Europe as that is how they measure a lathe, not sure if the same applies to a DP over there. In America it is the diameter of a disk that the lathe can swing or a DP can drill the center of. Europe measures the radius.
lg
no neat sig line
dutchgray
Well-known member
You may be correct in Europe as that is how they measure a lathe, not sure if the same applies to a DP over there. In America it is the diameter of a disk that the lathe can swing or a DP can drill the center of. Europe measures the radius.
lg
no neat sig line
Generally that is how it would be done, here in the UK although with drills both dimensions would often be listed, the rated drilling capacity would usually be listed on the name plate, ie hole size with a twist drill in steel, though many have their model number contain the drilling capacity.
Awsome, we have a genuine internet blogger among us.
Sent from my SM-G950U using Tapatalk
Well his post is gone. I don't think any of us needed a description of what a drill press is...