# Morse taper

I'm intrigued to know how the machine tool taper rules work. I have a drill whose chuck is a taper fit on the spindle. It appears to me that the spind le is a Morse taper 1 (I may be wrong). If it is indeed this size, I assume d that the chuck (with a female taper hole) would also be a Morse taper 1. But the manufacturers are calling it a B12. In fact, when I told them it wa s a Morse 1 it threw them until I sent a photo. So my question is, what is the difference between a Morse taper and a B taper (in principle, I mean, n ot in actual size, because I know there are several different sizes). Surel y the male and female would be the same fit, would they not?
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
I'm intrigued to know how the machine tool taper rules work. I have a drill whose chuck is a taper fit on the spindle. It appears to me that the spindle is a Morse taper 1 (I may be wrong). If it is indeed this size, I assumed that the chuck (with a female taper hole) would also be a Morse taper 1. But the manufacturers are calling it a B12. In fact, when I told them it was a Morse 1 it threw them until I sent a photo. So my question is, what is the difference between a Morse taper and a B taper (in principle, I mean, not in actual size, because I know there are several different sizes). Surely the male and female would be the same fit, would they not?
This should help -
http://www.jacobschuck.com/pdf/Technical-Information.pdf
According to page 3, a B10 taper corresponds to the small end of a MT1, and B12 to the large end. So it would appear that the angles are the same.
Steve
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
On Friday, September 13, 2013 11:32:50 PM UTC+1, shazzbat wrote:

Thanks Steve
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>

## Site Timeline

• ### Electrical question about lathe

• - the site's last updated thread. Posted in Woodworking Forum
• Share To

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.