HOLEMAKER STEP DRILL STRAIGHT FLUTE 5-25MM

Sizes: 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25mm
Step Length: 4.0mm
Overall Length: 81.8mm
Shank Diameter: 10mm

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