Holemaker Step Drill Spiral Flute 4-20mm
SPIRAL FLUTE STEP DRILLS
• 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.
Sizes Included: 4, 6, 8, 10, 12, 14, 16, 18, 20mm
Step Length: 3.0mm
Overall Length: 74.5mm
Shank: 8mm
