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#1
 
12-15-2009, 10:03 AM
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Hey Gang. I'm drilling out some 1.25 tool steel with a .5" drill and I've smoked 2 HSS drills so far. We're getting a cobalt drill and some more HSS but I was curious what feed/rpm/peck range I should be in.  |
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#2
12-15-2009, 09:25 PM
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| Try a High Performance Carbide 3 Flute 150Point Drill, No Peck 
__________________ Toby D. "Imagination and Memory are but one thing, but for divers considerations have divers names" Schwarzwald (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management) www.refractotech.com |
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#3
12-15-2009, 09:44 PM
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| like Toby said "carbide" they cost more but if your drilling a fair number of holes then they are worth the expense in time saved alone , D2 work hardens nasty and trying to send a new hss or cobalt drill down a hole where another burned out can be a real pain
__________________ A poet knows no boundary yet he is bound to the boundaries of ones own mind !! http://cnctoybox.org |
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