Holemaker Step Drill Straight Flute 4-12mm

STRAIGHT FLUTE STEP DRILLS
• The Titanium Nitride coating significantly increases thetool 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 12mmStep Length: 3.75mmOverall Length: 65.5mmShank: 6mm