|
|
|||||||
| Metal forming & tools If it bends,twists,welds,cuts & turns metal.Post it here |
 |
|
|
Thread Tools | Display Modes |
|
|
|
#1
10-26-2010, 12:48 PM
|
|||
|
|||
Re: centering
135 deg drills are a bit stronger than 118 deg and seems like I can push them harder and they work better in some steels. Split-point drills help prevent walking the most.
Running the tool a bit above center probably does 2 things for you. First as the tool flexes it moves to be on center rather than below, and 2nd being above center makes the tool edge a bit more of a positive rake which aluminum like better
__________________
Jeff 
|
|
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|
Hybrid Mode
