FIELD: construction.
SUBSTANCE: invention relates to wrench intended for use in low temperature conditions. Key comprises a handle in the form of an elongated metal part having a shell of polymer material attached thereto and inseparable from it. Shell is made of hydrophobisated and porous material with uniformly distributed fine and closed pores, which are filled with air at pressure of 1 atm at temperature of -72 °C material.
EFFECT: technical result consists in increasing the duration of holding the key without frostbite fingers.
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