1. Material: drop-forged 40CR-V or 45# CARBON STEEL

2. Production technology: black nickel, heat treated, chrome-plated

3. Size: 6*7mm,8*9mm,10*11mm,12*13mm,14*15mm,16*17mm,18*19mm,20*22mm,

21*23mm,24*26mm,25*28mm,30*32mm;1/4"*5/16",5/16"*3/8",3/8"*7/16", 1/2"*9/16"，

1/2"*5/8",5/8"*11/16",11/16"*3/4",3/4"*13/16",7/8"*15/16", 15/16"*1",1"*1-1/16",1-1/16"*-1-1/4"

4. package: hanging card, plastic rack,plastic box,double blister etc.

Or according to customer’s requirement.

5.Quality conform to ANSI and DIN3113 standard