rons
Diamond
- Joined
- Mar 5, 2009
- Location
- California, USA
A partial profile bit I use in a Iscar holder. There is a warning label on the box of ten. Warning about grinding dust.
I was not aware that these bits are altered with grinding. The coating is removed for one thing.
11ER A60 K20C INSERT – chpeters.com
The width of the tip is smaller than the length between two diagonal walls of desired thread. That would be Pitch/4.
Compound set to 29 degrees.
How do you widen the bottom of the thread if the bit is something like 1/2 the desired width?
Do you use some simple trig and move the compound along with the cross slide?
Or do you set the compound to 90 degrees and plunge straight in with the cross, inching the compound to the left to widen the bottom part of the thread?
Or grind down the tip to the width (Pitch/4)?
I was not aware that these bits are altered with grinding. The coating is removed for one thing.
11ER A60 K20C INSERT – chpeters.com
The width of the tip is smaller than the length between two diagonal walls of desired thread. That would be Pitch/4.
Compound set to 29 degrees.
How do you widen the bottom of the thread if the bit is something like 1/2 the desired width?
Do you use some simple trig and move the compound along with the cross slide?
Or do you set the compound to 90 degrees and plunge straight in with the cross, inching the compound to the left to widen the bottom part of the thread?
Or grind down the tip to the width (Pitch/4)?