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EM-Tec handling tweezers for cryo grid boxes

EM-Tec 553.AM precision cryo grid box handling tweezers are especially designed for handling  small cryo grid boxes used for storing TEM grid under liquid nitrogen. They can be used with EM-Tec GB4 cryo grid boxes and other cryo grid boxes of similar design with a rotating lid and a central screw to hold the lid. These tweezers allow you to pick up the cryo grid box by holding the head of the screw on the top.  They are designed for Ø5mm screw heads, but can be used for screw head sizes Ø3mm to Ø6mm. Tweezer length is 145mm.

These high quality, Swiss-made precision cryo grid box handling tweezers feature:

  • Polished edges –  good contact
  • Added length – safe handling in LN2
  • Matt, anti-glare finish
  • Serrated handles – extra grip
  • Cryo-compatible, low carbon austenitic stainless steel
  • Optimized for Ø5mm screw heads (can be used from Ø3-6mm)

EM-Tec CGT1 gripper tool design includes spring-loaded vice grips, which maintain a secure hold on the pin type lid. The hexagonal shape of the barrel  provides a firm grip for unscrewing the lid of the cryo grid box.  A useful and practical tool for handling the cryo grid boxes under LN2. Made from cryo-compatible aluminium.


  • Spring-loaded vice grips
  • Use with EM-Tec CGB-7 pin type cryo grid box
  • Hexagonal barrel for firm grip
  • Cryo-compatible aluminium construction

Technical Support Bulletin: TSB 50-001521 Material for EM-Tec 3View stub and cryo grid box tweezers