Feature

●1. High quality: HSS4241 steel (high speed steel), nitrogen coated,
●2. Weight: 12.8 oz (350 g); Drill Shaft Diameter (approximate): 0.5 inches (12 mm)
●3. Features: Cobalt High is more expensive than other companies, but it is more durable and long lasting than conventional products
●4. Applications: Suitable for hardness under 1.0 inch (25 mm) such as carbon steel, sheet metal, insulation board, PVC board, thick board, wood thickness 0.2 inch (5 mm) or less
●5. Drilling size: 0.4 - 1.8 inches (10, 15, 20, 25, 30, 35, 40, 45 mm)


Description

1. High quality: HSS4241 steel (high speed steel), nitrogen coated,
2. Weight: 12.8 oz (350 g); Drill Shaft Diameter (approximate): 0.5 inches (12 mm).
3. Features: Cobalt High is more expensive than other companies, but it is more durable and long lasting than conventional products.
4. Applications: Suitable for hardness under 1.0 inch (25 mm) such as carbon steel, sheet metal, insulation board, PVC board, thick board, wood thickness 0.2 inch (5 mm) or less.
5. Drilling size: 0.4 - 1.8 inches (10, 15, 20, 25, 30, 35, 40, 45 mm)