Welcome to our shop! This D-shaft provides a flat surface for set screws to grip, leaving the outer profile untouched. Even after heavy use, it will glide smoothly through bearings and matching components. Made from high-quality stainless steel, ensuring strength, durability, and a long lifespan. Many of our drive components feature a matching D-hole, preventing the shaft from spinning inside. Compact size for easy portability, storage, and convenient use with excellent performance. Perfect for FTC/gobilda/rev robotics/FRC/FIRST/FLL/WRO/tetrix/ServoCity/STEAM/VEX ROBOT /andymark/MATRIX/STEM/Pitsco Education projects. The 1.6mm D-shaft is the top choice for goBILDA. Single Size: Approx. 5 x 0.6 cm / 2 x 0.2 in Single Weight: Approx. 10.6 g / 0.4 oz Material: Stainless Steel Package: 10 pcs Size: Approx. 5.5 mm / 0.22 in 6 mm / 0.24 in 50 mm / 2 in Includes: 10 x D-Shafts