• It quickly cuts steel, stainless steel, iron, copper, brass, aluminum, fiberglass, and bakelite in seconds

• Suitable for processing stone, tile, ceramic, glass and granite

• Double-sided 3/8" rotary inserts and hex shanks fit most drills

• Made of high-quality high-speed steel for durability

• 10 different sizes to meet your requirements

• Forward and backward sloping tooth profile, strong penetration

Specification:

• Product: Rotary Spot Drill

• Material: high-speed steel + plastic storage box

• Diameter: 3/8"(9.5mm)

• Application: iron, cast iron, alloy steel, carbon steel, die steel

How To Use:

• Use a nail to fix the solder joint in the front and press down (the back of the nail has a spring mechanism to stretch

• When the serration part is in contact with the welding surface, use the power tool to rotate to remove the welding point