On the side it says:Bad pic but I think it says KTDR 12. I googled that number and came up with a pic of tool and I think it takes a TPG 322 insert.
jimsehr
PMAT:
That is an antique... I worked for Kennametal for 35 years and Widia for another 4+ and I have never seen a holder stamped with that many numbers and letters. KTDR-12C = K/Kennametal, T/Triangle, D/15 deg. lead, R/Right Hand, 12/Twelve Sixteenths height and width (3/4"), C/5" OAL. It is such an old holder and it is not offset so I believe that 15 degrees is correct for the "D" lead angle. If the head of the tool is offset, the letter "R" would represent 15 degrees. The nomenclature had me a bit stumped so I took a look at a couple of my old triangular insert holders and the insert letters for similar tools are stamped TP-32, which indicates TPG (all surfaces ground), or TPU (molded, but ground top and bottom) and the insert IC and thickness as: 3/8" IC (Inscribed Circle), 2/16" thick (1/8") and no specification for nose radius. When the ANSI system was adopted by the metal-cutting industry, nomenclatures changed somewhat. That is a good holder and triangular inserts are very universal. The inserts
are common to nearly every carbide manufacturer and are among the lowest cost inserts you can find. Keep an eye out for sales at MSC and ENCO for TPG's and look for brand names like Kennametal, Seco, Sandvik, and others. Uncoated grades are just fine, look for K313, K68, 883, 370, H13A... you can't go wrong with any of them.
Good Luck with your new tool!
Best Regards, Gary
I see a lot of these older tool holders for sale on ebay and I own some of them. What year do you think these were made and if I tried to find the definitions of the nomenclature like KTGR, KTAR, KTDR where could I get that? Also how can I identify what the side rake and the back rake will be? I have a lot of different inserts and holders, but have quite a few of the TPG-322. I'm on a 10F atlas lathe also so not a lot of power or load.PMAT:
That is an antique... I worked for Kennametal for 35 years and Widia for another 4+ and I have never seen a holder stamped with that many numbers and letters. KTDR-12C = K/Kennametal, T/Triangle, D/15 deg. lead, R/Right Hand, 12/Twelve Sixteenths height and width (3/4"), C/5" OAL. It is such an old holder and it is not offset so I believe that 15 degrees is correct for the "D" lead angle. If the head of the tool is offset, the letter "R" would represent 15 degrees. The nomenclature had me a bit stumped so I took a look at a couple of my old triangular insert holders and the insert letters for similar tools are stamped TP-32, which indicates TPG (all surfaces ground), or TPU (molded, but ground top and bottom) and the insert IC and thickness as: 3/8" IC (Inscribed Circle), 2/16" thick (1/8") and no specification for nose radius. When the ANSI system was adopted by the metal-cutting industry, nomenclatures changed somewhat. That is a good holder and triangular inserts are very universal. The inserts
are common to nearly every carbide manufacturer and are among the lowest cost inserts you can find. Keep an eye out for sales at MSC and ENCO for TPG's and look for brand names like Kennametal, Seco, Sandvik, and others. Uncoated grades are just fine, look for K313, K68, 883, 370, H13A... you can't go wrong with any of them.
Good Luck with your new tool!
Best Regards, Gary