SPIRAL FLUTE 

STEP DRILL SET 

• The Titanium Nitride coating significantly increases the tool life by providing the following benefits: 

• Increases surface hardness to 85HRC 

• Ceramic surface, reducing friction by up to 30% 

• Especially resistant to cold welding. 

• Suitable for cutting a wide range of materials. **Will cut Stainless Steel however Stainless will reduce the edge life of your cutting tool. 

Set Contents Listed Below 

Part No. Size min-max Quantity 

SD4-20MM 4 -20MM 1 

SD5-25MM 5 - 25MM 1 

SD6-30MM 6 - 30MM 1