High quality material - The step drill is made of high speed steel with high hardness and good wear resistance. Made of high speed steel with titanium coating to reduce friction and heat, more powerful and durable.

Multi-size for More Practical - Can be used to drill a variety of hole sizes to meet your various needs, saving your money and more practical.

Wide Application - Triangle Shank Step Drill is perfect for cutting holes in a variety of materials including brass, wood, plastic and more within 25 degrees Hardness and 5mm Thickness & Titanium Twist Drills are mainly used in wood, plastic and aluminum & M35 Twist Drills are special suitable for high hardness steel such as stainless steel.

Specifications:

Material: High speed steel 4241

Sizes of the 5 Step Drill Bits:

1/4-1-3/8" 3/16-7/8" 1/4-3/4" 1/8-1/2" 3/16-1/2"

Quantity: 5pc

Package Includes:

5x Step Drill Bit