3pcs 4-12/20/32mm HSS Titanium Step Cone Drill Bit Hex Shank Hole Cutter

Specification:  Material: HSS;  Finish: Titanium;  Length: 6.7cm/ 7.4cm/10.2cm;  4-12mm: 4mm, 6mm, 8mm, 10mm, 12mm;  4-20mm: 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 14mm, 16mm, 18mm, 20mm;  4-32mm : 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm.     Features:  1/4 Hex Shank.  With nylon storage bag.  With the Titanium coated to reduce friction and heat.  Two flute design provides faster, smoother and cleaner cuts.  Perfect for home DIY and building / engineering use.  Suitable for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc.     Package Included:  3 x Drill Bit;  1 x Pouch