HOLEMAKER STEP DRILL SPIRAL FLUTE, 11 STEPS, 3MM STEP LENGTH, 5-25MM

Features:

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

Specifications:

• Sizes: 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25mm
• Step Length: 3.0mm
• Overall Length: 83.0mm
• Shank Diameter: 10mm