Description
SDST4-12MM 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