Feature

●Set includes: 2 pieces Size: 4-12mm <9 Tier> (4,5,6,7,8,9,10,11,12), 4-20mm <9 Steps> (4,6,8,10,12,14,16,18,20)
●Hardness: HSS-Co M35 steel step drill is coated with titanium surface to make the hardness HRC89. The step drill is more high temperature and abrasion resistant
●Multi-hole diameter: Can be expanded from small to large apertures, drilling, enlarging and processing various sizes
●Excellent durability and excellent stability: The spiral groove design reduces pressure during cutting, improving the discharge situation
●Scope of application: Spiral shape is suitable for stainless steel. An essential tool for drilling, beveling, deburring and removing stainless steel, thin iron plates, aluminum plates, wood, vinyl, resin, etc


Description

Package Include:
3 Piece Set Step Drills
Drilling Range:
0.2 - 0.5 inches (4,5,6,7,8,9,10,11,12)
0.2 - 0.8 inches (4, 6, 8, 10, 12, 14, 16, 18, 20)
Material: High-speed steel
Color: Black