HOLEMAKER SPIRAL FLUTE STEP DRILL SET, 3 PCE, 4-20MM/5-25MM/6-30MM

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:

3 Piece Set Includes:

• 1 x SD4-20MM 4 – 20mm
• 1 x SD5-25MM 5 – 25mm
• 1 x SD6-30MM 6 – 30mm