Holemaker 3pc Spiral Flute Step Drill Set-4-30mm

SDSET-1 | Holemaker 3pc Spiral Flute Step Drill Set-4-30mm Features 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.** Set Contents: • 1 x SD4-20MM 4 - 20mm • 1 x SD5-25MM 5 - 25mm • 1 x SD6-30MM 6 - 30mm **Will cut Stainless Steel however Stainless will reduce the edge life of your cutting tool.