Hardened steel nuts tool Rock Empire Nut Tool 

Rock Empire Nut Tool is a light and durable hardened steel tool for removing embedded elements from cracks.
Equipped with six different hexagonal holes for tightening nuts.
Withstands significant bending, breaking and twisting loads

Rock Empire Nut Tool Specification (s):
- Weight, g:  32 (1.1 oz)
- Length. cm:  17.2 (6.8 in)
- Material (s):  steel
- Certification(s): -
- Made in the EU
- Reference:  https://www.rockempire.com/cams-stoppers-and-nuts/nut-tool

MANUFACTURER
Rock Empire
Rock Empire is a Czech manufacturer of equipment for working with rope in both sports (mountaineering, rock climbing) and production (industrial mountaineering, rescue work). The company started its activity in 1990 with sewing of insurance systems.
The modern Rock Empire collection is represented by two categories of goods: - for extreme sports and for industrial mountaineering.
Sports equipment for mountaineering, rock climbing, caving: these are safety systems for mountaineering, rock climbing and caving, embedded elements. (friends, stoppers), loops and guy lines, muffled and non-muffled alloy carbines of various configurations, helmets, rock shoes, ice equipment. (cats and ice axes), rope both static and dynamic, sleeping bags with synthetic insulation for different temperature conditions, various accessories for mountaineering and rock climbing (magnesia, bags, gloves, bags for rope, hooks, etc.).
Equipment for promalp and rescue operations: safety systems for industrial mountaineering and rescue operations, clamps for rope lifting, trigger/safety devices, attachments, carbines, self-insurance, light and strong helmets, rope and accessories (protectors, bags), equipment for arboristics (tree work), a series of equipment for workers power structures, made in black.