[3PCS(4 12 4 20 4 32)]

Professional and durable professional tool for industrial applications
Note: Professional need to use it. Irrelevant personnel are strictly prohibited from their approach while working.
Application: Metal Drilling
Material: High-speed steel
HSS Step Cone Tapered Drill Bit Set Metal Hole Cutter Metric 4-12 / 20/32mm 1/4" Titanium Coated Metal Hex Taper 3PC

Features:
This is a new HSS steel large step cone drill titanium bit set hole cutter made from high quality HSS steel, and coated to reduce friction and heat with titanium
It is very suitable for use with cut holes in a variety of materials including steel, brass, wood, and plastic etc.
Material: HSS steel
Finish: Titanium

Length:
4-12mm Length: approx. 2.64 inches (6.7 cm).
4-20mm Length: approx. 2.91 inches (7.4 cm).
4-32mm Length: approx. 4.02 inches (10.2 cm).

Four cutters come in the following sizes:
4 - 32 mm (0.2 inch (4 mm) 6, 0.3 inch (8 mm) 10 mm 12 mm 14 mm 16 mm 18 mm 20 mm 22 mm 24 mm 26 mm 28 mm 30 mm 2 mm)
4 - 20 mm: 0.16 mm, 0.31 mm, 0.41 mm, 0.41 mm, 0.55 inches, 0.63 inches, 0.63 inches, 0.49 inches, 0.63 inches, 0.63 inches, 0.79 inches (4 mm, 6 mm, 8 mm, 10 mm, 10 mm, 120 mm).
4-12 mm (0.2 inch (4 mm) 6, 0.3 inch (8 mm), 0.4 inch (10 mm), 0.08 inch (2 mm)).
3-12 mm (0.2 inch (6 mm) 0.2 inch (3 mm) 0.2 inch (6 mm) 0.2 inch (8 mm), 0.4 inch (9 mm), 0.4 inch (10 mm), 0.4 inch (11 mm), 0.5 inch (12 mm)