Features: Engineered with premium high speed steel, this 100mm Allen Screwdriver Tip offer longer lifespans and superior wear resistance, featuring a quickly swap design precise ground tip with HRC65+ hardness withstands heavy load applications while maintaining sharpness, complemented by anti corrosions treatments for durability in humid environments. Essential for professional woodworkers, metal fabricators, and remote aircraft builders requiring high performances replaceable tool parts for precise tasks. Optimizes efficiency in workshop projects, outdoor equipment repairs, and marine grade materials processing where reliability hexagonal key bits are critical. Its easy replacement mechanism revolutionizes workflow continuity, making it indispensable for hexagonal key driver and rotary tool users tackling complex assemblies. Specifications: Component: Alloy Length:Approx.10cm/3.94inch Option hexagonal Bit Size:Approx. 0.9x100cm/0.35x3.94in, 1.27x100cm/0.5x3.94in, 1.3x100cm/0.51x3.94in, 1.5x100cm/0.59x3.94in, 2.0x100cm/0.78x3.94in, 2.5x100cm/0.98x3.94in, 3.0x100cm/1.18x3.94 4.0x100cm/1.57x3.94in Applicable scenario: aircraft module assembly, remote control vehicle modification Package Includes: 1pc Allen Screwdriver Tip note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.