HSS Drill Bit Set High Speed Steel Shank Step Cone Drilling Bit For Metal Wood Hole Tools 312mm,412mm, 420mm,432mm 1pcs 412mm

Features:
1. 3pcs HSS Step Cone Drill Coated Hole Bit Set 4-12/20/32mm with pouch.
2. Complete With Storage Pouch Tool Is A Excellent Quality Professional Quality Tool
3. Tool Is Suitable For Automotive, Engineering And DIY Use
4. Comes With A Manufacturer's 1 Year Guarantee. Buy With Confidence
5. This is the New HSS Steel Large Step Cone Drill Bit Set Hole ,which is made from high quality HSS steel.
6. And with the coated to reduce Friction and Heat
7. It is very suitable for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc.
8. Material: HSS Steel

Single Step Drill Size:
? 3-12mm
(3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm)
? 4-12mm
(4mm, 6mm, 8mm, 10mm, 12mm)
? 4-20mm
(4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm）
? 4-22mm
(4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 20mm）
? 4-32mm
(4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm,32mm)

3PCS Step Drills Set Size:
?Small Size Set: 4-12mm, 4-20mm, 3-12mm
?Large Size Set: 4-12mm, 4-20mm, 4-32mm

Package Includes:
1pc or 3pcs High Speed Large Drill Bit Set

a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a