4mm 5mm Countersink Bit Screw Set Wood Pilot Hole Drill Bits For Woodworking Hex Shank Countersink Guide Drill Bits COD

Compatibility

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High-Quality Construction: The main body is made of durable 45# carbon steel, ensuring strength and longevity. The HSS4241 drill bits offer exceptional hardness for efficient drilling.

Convenient Chamfering: With its built-in chamfering function, these bits not only create countersinks but also provide smooth and clean chamfered edges for a professional finish.


Specification:
Material: High-speed steel

Hexagonal Quick-Change Handle with Drill Sleeve

Chamfering Function


Package Included:(optional)
4mm:

1 x Wrench

5mm:

1 x Wrench

Set:

2 x Wrench