A twist drill is a cutting tool used in drilling machines for creating cylindrical holes in solid materials. The drill bit has a spiral shape, which helps to remove the material being drilled out of the hole.
A twist drill is a cutting tool used in drilling machines for creating cylindrical holes in solid materials. The drill bit has a spiral shape, which helps to remove the material being drilled out of the hole.
A twist drill is a cutting tool used in drilling machines for creating cylindrical holes in solid materials. The drill bit has a spiral shape, which helps to remove the material being drilled out of the hole.