So I've got these drill bits - Printable Version +- Woodnet Forums (https://forums.woodnet.net) +-- Thread: So I've got these drill bits (/showthread.php?tid=7311025) |
RE: So I've got these drill bits - Redman - 06-04-2019 (06-03-2019, 11:09 PM)Bob Vaughan Wrote: LOL Probably a fortune in 16th, 17th, and 18th century tools. Gad I'm surrounded by old fossils. I'm only 71. RE: So I've got these drill bits - Bob Vaughan - 06-04-2019 (06-04-2019, 06:11 AM)Redman Wrote: Probably a fortune in 16th, 17th, and 18th century tools. 74 here. Timberwolf graciously and tactfully endures the brashness of our relative youth and inexperience. RE: So I've got these drill bits - Redman - 06-04-2019 (06-04-2019, 07:39 AM)Bob Vaughan Wrote: 74 here. Timberwolf graciously and tactfully endures the brashness of our relative youth and inexperience. Yes RE: So I've got these drill bits - Timberwolf - 06-04-2019 (06-03-2019, 11:09 PM)Bob Vaughan Wrote: LOL.............................. "Wow, after being at it for so long you must have a heck of a shop" I wish....when I hit 75, my mind starting writing checks my body couldn't cash, so it's just a garage full of junk these days.... RE: So I've got these drill bits - Redman - 06-04-2019 (06-04-2019, 08:13 AM)Timberwolf Wrote: .............................. Mine is getting that way. So back to the drill bits. Percussion rock bit. Largest I've seen was 24" diameter. Took me two and a half days to set up and cut the drive splines on two of them. Took another guy and myself 24/7 for 7 days to drill and ream the holes for the carbide buttons. Around 500 holes as I recall. Tolerance of +/- 0.0003". RE: So I've got these drill bits - Timberwolf - 06-07-2019 (06-04-2019, 09:01 AM)Redman Wrote: Mine is getting that way. ........................ RE: So I've got these drill bits - Redman - 06-08-2019 (06-07-2019, 08:17 AM)Timberwolf Wrote: ........................ Thankee, thankee. Gad I'm glad that was a one time deal. That material, 41xx? was HT'ed very hard and I was the junior employee so I got the overnight stuff after I cut the splines. BTW they gave us solid carbine drills to make the holes before reaming. The drills kept breaking regardless of how we operated them. I took it upon myself to use HSS drills and change the CNC program accordingly. Hero time, they had tired of buying the carbine drills and we still beat the time given. RE: So I've got these drill bits - Stwood_ - 03-07-2020 (06-08-2019, 06:36 PM)Redman Wrote: Thankee, thankee. Gad I'm glad that was a one time deal. That material, 41xx? was HT'ed very hard and I was the junior employee so I got the overnight stuff after I cut the splines. Guess I've never had reason to own/buy solid carbide drill bits. RE: So I've got these drill bits - mike4244 - 03-08-2020 (07-02-2016, 12:40 AM)Stwood_ Wrote: that my grandfather gave me around 40 years ago. You've been a member since 2003. almost 20,000 posts. Try reversing the drill in the chuck, usually bores better with the sharp end down. mike RE: So I've got these drill bits - Stwood_ - 03-08-2020 (03-08-2020, 04:46 PM)mike4244 Wrote: You've been a member since 2003. almost 20,000 posts. Try reversing the drill in the chuck, usually bores better with the sharp end down. Ok |