Feature: 1. The D‑profile provides a flat surface for set screws to contact while leaving the outer profile untouched. 2. Even after heavy usage, it will slide through bearings and mating components with ease. 3. Using high‑quality stainless steel materials, strong and durable, has a long service life 4. Many drive components we offer have a matching D‑bore so there’s no chance of the shaft spinning inside. 5. Small size, easy to carry and store, convenient to use and with good performance Specification: Item Type: D-ShaftSales Keywords: for FTC/gobilda/rev robotics/FRC/FIRST/FLL/WRO/tetrix/ServoCity/STEAM/VEX ROBOT/andymark/MATRIX/STEM/Pitsco Education 1.6mm D-Shaft is the first choice for goBILDA. 2.The D-profile provides a flat surface for set screws to contact while leaving the outer profile untouched. 3.So even after heavy usage, it will slide through bearings and mating components with ease. 4.Many drive components we offer have a matching D-bore so there’s no chance of the shaft spinning inside. Single Size: Approx. 10 x 0.6cm / 3.9 x 0.2in Single Weight: Approx. 21 g / 0.7 oz Material: Stainless steel Packing Quantity: 5PcsSize: Approx. 5.5mm / 0.22in6mm / 0.24in 100mm / 3.9in. Package List: 5 x D-Shaft