Applicable to ER40UM nuts, made of alloy steel, weighing only 500g, structure, easy to carry with you. Name: ER40UM hardened wrench As a special type of adapter wrench, this product has extremely high and ergonomic design, making you feel comfortable when using it. The high-quality material makes it very stable, wear- and , and not easy to damage. The hardened handle does not affect its normal use, but increases the service life of the wrench., Weight: 0.80358494499 Pounds, Manufacturer: Gishbjka