HOLEMAKER STEP DRILL, SPIRAL FLUTE, 5 STEPS, 8MM STEP LENGTH, 4 – 12MM

The Titanium Nitride coating significantly increases the tool life by providing the following benefits:.
Increased 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: 4, 6, 8, 10, 12mm
Step Length: 8.0mm
Overall Length: 64.0mm
Shank Diameter: 8mm