Material: high speed steel
Colour: gold
Surface treatment: titanium plated
Size: 3mm, 4mm, 5mm, 6mm, 6.5mm, 8mm
Easy to install, fits most electric and bench drills.
When drilling on hard materials such as glass, tile, marble or granite, please moisten with water first.
Not suitable for: stainless steel, carbon steel, high hardness metal, concrete.