Measurement system
제국 (인치), 미터
material
45# steel,CRV steel, S2 tool Steel
Plating
black oxide, nickle plating ,white zin plating
Metric size
1.5mm*17*47,2mm*16*50,2.5mm*3mm*21*5119*54,
Inch size
1/16,5/64,3/32,7/64,1/8,9/64,5/32,3/16,7/32,1/4,5/16
Application
hex Socket screw
Product name
High Strength Alloy Steel Wrench Hex Allen Key