Set 1 / 3 Mũi Khoan 4-32mm Bằng Thép Gió Hss

Stepped:(4,6,8,10,12,14,16,18,20,22,24,26,28,30,32 mm)
Style:1pc(4~32mm) or 3pcs/set(4-12/4-20/4-32mm)
Material:HSS
Brand New and high quality
Shank:10 mm
Nitriding gold spiral groove drilling ladder 4-32 MM
Shank:Triangle round handle
Surface Treatment:nitrogen treatment(increasing the hardness and abrasion resistance)
Specification
Package Included:1pc or 3pcs Hss Step Cone Drill Bit Titanium Hole Cutter Set
Product material: high speed steel 4241
Surface treatment: Nitriding (black)
MEASUREMENT:
4-12 5 Steps (Diameter 4, 6, 8, 10, 12mm)
4-20 9 Steps(Diameter 4, 6, 8, 10, 12, 14, 16, 18, 20mm)
4-32 15 Steps(Diameter 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32mm)
Package Included:
1pc 4~32mm Spiral Drill Bit or 3pcs/set 4-12/4-20/4-32mm Spiral Drill Bit
Notice:
1.1cm=10mm=0.39inch.
2.Please allow 1-2mm error due to manual measurement and make sure you do not mind before ordering.
3.Please understand that colors may exist chromatic aberration as the different placement of pictures.