Step Drill Bit Set, 3 Pieces, Shaft Axis, 4-20mm, with Dedicated Case, Hole Drilling, 501

◎ This product is an extra-large stepped drill capable of drilling holes from 4mm to 20mm with just three pieces.
Features a dedicated shaft axis type with a structure that can be securely attached to various tools such as electric drills and drill presses.
Enables precise stepped drilling for a variety of materials including thin metal, plastic, and aluminum plates.

★ Multiple Sizes Supported with 3 Pieces (4-20mm) ★
● No need to change tools to adjust hole diameter. Smoothly processes even large holes up to 32mm.

★ High-Precision Step Design ★
● Stops at the exact size for each step, resulting in minimal burrs and a beautiful finish.

★ Hexagonal Shaft Axis Specification (or Round Shank) ★
● Compatible with electric drills, impact drivers, drill presses, etc.
Securely fixed to the chuck with a stable design that resists wobbling.

★ Compatible with a Wide Range of Materials ★
● Suitable for many materials such as steel, stainless steel (thin plate), aluminum, brass, resin plates, etc.

★ Compact and Convenient for Carrying ★
● Simply keep one in your toolbox to significantly improve efficiency on job sites.

[Uses and Applications]
● Drilling cable holes for distribution boards and breaker panels
● Processing metal panels for vehicles and motorcycles
● Drilling holes in aluminum, iron, and resin cases
● Drilling holes for hobby and DIY projects
● General electrical, air conditioning, and facility construction

● Shank Diameter: 6mm (No.1, No.2) / 8mm (No.3)
[Each Size]
● No.1 Step Diameter: 4, 6, 8, 10, 12mm; Step Width: 8.5mm
● No.2 Step Diameter: 4, 5, 6, 7, 8, 9, 10, 11, 12mm; Step Width: 5.0mm
● No.3 Step Diameter: 4, 6, 8, 10, 12, 14, 16, 18, 20mm; Step Width: 5.0mm
◆ Material: HSS Titanium Coating
◆ Manufacturer: China
cc-6027

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