2pcs AlTiSin Coated Carbide 4 Flute Square End Mill 2mm x 20mm x 4mm x 50mm 1-1/4"x2-1/4"x1/2" Inside Diameter: 20mm

Inside Diameter: 20mm

but only pulley here

This type is miniature Worm Gear DC Motor

Industry-grade DC10-32V to DC 24V converter

2pcs AlTiSin Coated Carbide 4 Flute Square End Mill 2mm x 20mm x 4mm x 50mm 1-1/4"x2-1/4"x1/2" Inside Diameter: 20mmMade of super fine grain carbide, the end mill cutter has high hardness (HRC92), high strength, and wear resistance. With good milling and cutting performance, carbide can run at higher speed than high speed steel. Features square end cut, 4 flute design, large and spiral chip space design for fast and clean chip removal. Sharp cutting edge provides smooth cutting. The AlTiSin composite coating has high hardness, high wear resistance and high thermal