Holemaker Step Drill Spiral Flute 5-25mm

SPIRAL 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: 5 7 9 11 13 15 17 19 21 23 25mmStep Length: 3.0mmOverall Length: 83.0mmShank: 10mm