Steelmaster SD5-25MM Spiral Flute Step Drill Set - 5-25mm
$59.95
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
Part No. Sizes Included Step
Length
Over All
Length
Shank
Diameter
SD5-25MM 5, 7, 9, 11, 13, 15,
17, 19, 21, 23, 25mm
3.0mm 83.0mm 10mm