Feature
●Material: HSS-CO Cobalt High Speed Steel (TiAIN Titanium Nitride Aluminum Coating)
●Cobalt High Speed (HSS-CO) has exceptional abrasion resistance and heat resistance at 144 - 144.4 °F (63 - 67 °C).
●TiAIN Titanium Nitride coating raises surface hardness up to 89 degrees and resists loads in high-speed rotations.
●Shape: Spiral Shape Hexagonal Shaft Diameter 0.25 inch (6.35 mm)
●Drilling Dimensions: 0.2 - 0.5 inches (4 - 12 mm) (9 levels) (4, 5, 6, 7, 8, 9, 10, 11, 12)
[4mm-20mm 9 segments]
[4mm-32mm 15 segments 3 blades]
[5mm-27mm 12 segments]
[4mm-12mm 9 segments]
[4mm-12mm 5 segments 3 blades]
[4mm-12mm 9 segments 3 blades]
[5mm-21mm 9 segments]
[4mm-22mm 10 segments 3 blades]
[4mm-22mm 10 segments]
[5mm-23mm 10 segments 3 blades]
Description
Black Titanium Step Drill TiAlN Titanium Nitride Aluminum Coating Cobalt High HSS-CO
Material: Cobalt High Speed Steel HSS-CO (TiAlN Titanium Nitride Aluminum Coating)
Size: Drilling size: 0.2 - 0.5 inches (4 - 12 mm) (9 levels) (4 / 5 / 6 / 7 / 8 / 9 / 10 / 11 / 12 mm)
Shape: Spiral shape hexagonal shaft diameter 0.25 inches (6.35 mm)
Total Length: 3.0 inches (75 mm).
Blade Length: 1.9 inches (49 mm)
Diameter pitch width: 1.0 inches (26 mm)
Stair Height: 0.3, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2 inches (7, 5, 5, 5, 5, 5, 5, 5, 5,
Hardness: 3200.
Paint thickness: 2-5
Effective Cutting Ability:
Iron plate: 0.1 inch (3.0 mm)
Stainless Steel Plate: 0.08 in (2.0 mm)
Reference RPM):
Soft Iron 2400-320
Stainless Steel 1200-160
Copper Glue 4800-640
Plastic 1200-160
Specifications: Because it is sharp, please use it vertically.
Titanium Nitride Aluminum Coating: With exceptional abrasion resistance and heat resistance, there is no need for cooling water.
It is excellent even without cutting oil, but we recommend using cutting oil for long lasting use.