- Joined
- Jun 26, 2014
- Messages
- 619
I brought a number of second hand end mills at auction - larger size, cheap, I figure good for practicing regrinding/sharpening on.
Two of them are three flute drill bits, 14 and 12mm diameter and they are heavy - like carbide heavy. Tried sharpening then on my normal grinder and they ground an edge but not at all like HSS, but they did seem to grind which i wouldn't expect from carbide.
For comparison from left to right: 14mm drill 150 grams, 12 mm drill 128 grams, for comparison 12mm HSS End Mill 58 grams - so these are heavy.
Only markings I can make out on them is:
12.0 VHM K10/20
A1166 TITEX PLUS
14,0 K10
?28
Any idea what material they are? Do I have some solid carbide tools here?
Two of them are three flute drill bits, 14 and 12mm diameter and they are heavy - like carbide heavy. Tried sharpening then on my normal grinder and they ground an edge but not at all like HSS, but they did seem to grind which i wouldn't expect from carbide.
For comparison from left to right: 14mm drill 150 grams, 12 mm drill 128 grams, for comparison 12mm HSS End Mill 58 grams - so these are heavy.
Only markings I can make out on them is:
12.0 VHM K10/20
A1166 TITEX PLUS
14,0 K10
?28
Any idea what material they are? Do I have some solid carbide tools here?