SPIRAL FLUTE STEP DRILLS 

• 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. 

Sizes Included: 7, 10.5, 12.5, 14.5, 16.5, 18.5, 20.5, 23.5, 25.5, 30.5, 32.5, 38.5, 40.5mm 

Step Length: 3.0mm 

Overall Length: 115mm 

Shank: 12mm