Cutting Fluid

Cutting fluid is a lubricant used during drilling and tapping to reduce friction and heat. 

 

 Why It’s Used 

 

 Reduces heat buildup 

 Lowers friction on tools 

 Helps produce cleaner threads 

 Extends drill and tap life 

 

 

 When to Use It 

 

 Tapping aluminum (10-32, 1/4-20) 

 Drilling larger or deep holes 

 When tools start to feel hot or resist cutting 

 

 

 How to Use It 

 

 Apply a small amount to the hole or tool 

 Reapply if needed during cutting 

 Keep it light—don’t overuse 

 

 

 Key Idea 

 Cutting fluid makes drilling and tapping easier and safer by reducing heat and friction, especially in aluminum.