4-12 4-20 4-32 6-60mm Pagoda Drill Screw Drill Core Drilling Tool High Speed Steel HSS Spiral Grooved Metal Steel Step Drill Bit

Features:
This is the New HSS Steel Large Step Cone Drill Titanium Bit Set Hole Cutter,
which is made from high quality HSS steel, and with the Titanium coated to reduce friction and heat
It is very suitable for using to cut holes in a variety of materials including thin steel, brass, wood, plastic, etc
Specification:
Material:High speed steel (HSS)
Shank: 10mm
Flute: Spiral
4-12mm: (4mm, 6mm,8mm,10mm,12mm) 5 Steps
4-20mm:( 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm)9 Steps
4-32mm:( 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm,22mm,24mm,26mm,28mm,30mm,32mm)15 Steps
6-60mm: (6mm, 10mm,15mm,20mm,25mm,30mm,35mm,40mm,45mm,50mm,55mm,60mm) 12 Steps
Package Included:
1 Set Spiral Groove Cone Drill Bit