Jan 4, 2002 #1 Hush Mechanical Joined Dec 21, 2001 Messages 317 Location US Ran across a drawing notation specifying: 'Higby first and last thread'. I'm assuming this is asking for a blunt start thread but am curious as to the term's origin and as to whether it is or was ever in common usage.
Ran across a drawing notation specifying: 'Higby first and last thread'. I'm assuming this is asking for a blunt start thread but am curious as to the term's origin and as to whether it is or was ever in common usage.
Jan 21, 2002 #2 jackboot Mechanical Joined Jun 27, 2001 Messages 151 Location US It is common at our shop. And yes it means blunt start. You can check Machinist Handbook. Upvote 0 Downvote