3Pcs of HSS Titanium Step Drill Bits 3-12mm 4-12mm 4-20mm

Material High Speed Steel 4241 (Suitable for Workpieces with Hardness Below 25, Such as Thin iron Plate, Insulating Plate, Wood Board, Aluminum Material, PVC Board Wood Thickness Within 5mm)

Features:
– Material: HSS
– High Speed Steel for Long Life
– 4-12mm: 4, 6, 8, 10, 12mm
– 4-20mm: 4, 6, 8, 10, 12, 14, 16, 18, 20mm
– 3-12mm: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12mm

Package Includes:
1 x 3-12mm Titanium Step Drill Bits
1 x 4-12mm Titanium Step Drill Bits
1 x 4-20mm Titanium Step Drill Bits