Feature

●Uses: For home DIY, drilling wood, thin steel plates, stainless steel, aluminum wood, FRP and resin, etc. For drilling holes, chamfering, deburring work, etc. Stainless steel can be drilled up to 0.04 inch (1 mm), aluminum up to 0.1 inch (3 mm)
●[Features] The holes are spread sequentially from small to large holes, so you can modify the holes in multiple sizes and magnification of the holes
●Material: High-speed steel, titanium coated surface, clear color, sharpening drill extension tool life, titanium coating process, spiral shape, sharp and durable
●[Size] (Large) 0.2 - 1.3 inches (4 - 32 mm), (Medium) 0.2 - 0.8 inches (4 - 20 mm), 9 steps (Small) 0.2 - 0.5 inches (4 - 12 mm), 5 tiers. Set of 3 divided compartments - Large, Medium and Small - Comes with a piggy bag for easy carrying
●(Quality assurance) If you purchase a defective drill bit, please contact me via email, and we can exchange it for free of charge


Description

Features:

High speed steel is a tool material that can be used to make cutting metal materials at a higher temperature as it is used after heat-tempering process, such as tempering, and then sanded to compensate for low softening resistance at high temperatures.
How to Use:
Normally drilling, the size of this step drill is a tool that allows you to drill holes in one size, but the holes are expanded sequentially from small to large holes, so it is a tool that allows you to modify the magnification of multiple sizes and holes. So you dont have to use multiple drills, so its more efficient. The step drill is mainly used with an impact screwdriver. Slowly press the impact driver until the size you want to drill a hole. NEVER OPEN! This may cause injury or damage.

Size:
5 Tiers (4,6,8,10,12mm)
9 Tiers (4,6,8,10,12,14,16,18,20mm)
15 Tiers (4,6,8,10,12,14,16,18,20,22,24,26,28,30mm,32)
Uses: Iron plates, aluminum plates, wood, resin, etc.
Material: High speed steel (HSS steel, high speed steel).