Ribitech - Step drills - Set of 2 : Ø 4-30mm / Ø 4-12mm for a high resistance.
Step drills - Set of 2 : Ø 4-30mm / Ø 4-12mm from Ribitechthese HSS steel titanium plated step drills allow you to work on thin materials (5 to 7 mm depending on the model) or to make pilot holes.
You will therefore make fast and progressive drilling at different diameters, and this in most materials: metal, wood, plastic, sheet metal, etc.
Drill sizes :
1. 2