Originally Posted by KenFoulks  How big is the material?
How much does it weigh?
How well are you holding it?
What type of steel?
Who manufactures the tap?
What coating does the tap have?
What coolant are you using?
How much coolant are you using?
Are you currently experiencing problems?
What size lathe do you have? |
The Material is only 1 5/8 dia. and we are holding it in a collet chuck with serrated jaws and material is 4140 steel. Tap is an OSG tap with a coating but not sure which it is, and we are using Consultant Lubricants Full Synthetic at a 8 on the refracometer. This is currently working just fine and we are using a Doosan 2500, only lathe we had with enough umph and holding force.