Twist Drill Bit Set Serrated Groove Cutting

Description

Great drill bits that allow you to cut horizontally after you have a starting hole.  Even better than a jig saw.

Scope of application:
Suitable for grooving processing on thin wood, wood, aluminum, and plastic boards.
Features:
The cutting edge is sharp, and it can be used for drilling thin boards such as wood planks, and it can also be used for horizontal sawing after drilling.
Surface treatment:
Titanium plating.
Material:
High-speed steel 4241