3 In 1 Hexagonal Shank Step Drill High Speed Steel Rear Hole Opening Tool(Plastic Bag Packaging)

1. Material: high speed steel
2. Outer edge angle: about 118 degrees
3. Chip flute length: about 56mm
4. Cutting diameter: about 50mm
5. Blade diameter: about 26mm
6. Shank diameter: about 6.35mm
7. Weight: about 96g/set

Specification:
- 3/16-1/2 inches: 3/16 inches (4.76mm), 1/4 inches (6.35mm), 5/16 inches (7.94mm), 3/8 inches (10.35mm), 7/16 inches (11.11mm), 1/2 inch (12.7mm)
- 1/4-3/4 inches: 1/4 inches (6.35mm), 5/16 inches (7.94mm), 3/8 inches (10.35mm), 7/16 inches (11.11mm), 1/2 inches (12.7mm), 9/16 inch (14.28mm), 5/8 inch (15.88mm), 11/16 inch (17.46mm), 3/4 inch (19.05mm)
- 1/8-1/2": 1/8" (3.18mm), 5/32" (3.97mm), 3/16" (4.76mm), 7/32" (5.56mm), 1/4" (6.35mm), 9/32 inches (7.14mm), 5/16 inches (7.94mm), 11/32 inches (8.73mm), 3/8 inches (9.53mm), 13/32 inches (10.32mm), 7/16 inch (11.11mm), 15/32 inch (11.91mm), 1/2 inch (12.7mm)

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