Description
STRAIGHT 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 5 6 7 8 9 10 11 12mm Step Length: 3.75mm Overall Length: 65.5mm Shank: 6mm