This 4-22mm step cone drill bit is suitable for cutting hole in a variety of materials including steel, brass, wood, plastic, etc.

Features:
ManufA-Ctured from high speed steel for increased durability and cutting power.
Tita-nium coated to reduce friction and heat.
2mm step increments.
Compared with the ordinary twist drill, is not easy to be broken.
Specially designed for precision drilling of holes in aluminium, brass, copper, plastic, steel and wood.

Specifications:
Material: High-speed steel
Color: G-old
Size: 4-22mm (6,8,10,12,14,16,18,22mm)
Shank Size: 25 * 6mm / 0.98 * 0.24in
Total Length: 75mm / 2.95in
PA-Ckage Weight: 50g / 1.76ounces
PA-Ckage Size: 80 * 30 * 30mm / 3.15 * 1.18 * 1.18in

PA-Cking List:
1 * Step Cone Drill Bit