Siko: KHB Handwheel series by SIKO are ergonomically designed, fiber-glass‑reinforced plastic handwheels equipped with zinc‑coated steel hubs. They provide manual adjustment control on machine spindles and can be paired with analog mechanical indicators like the S80/1 and SZ80/1 for precision format setup. Features include threaded hub design for optional handle installation and a variety of bore, keyway, and pin hole options for flexible shaft mounting and compatibility.KHB have to types 1) KHB13 2) KHB15 In essence, the KHB13 is a more compact version (~130 mm) that suits limited-space setups requiring moderate torque. The KHB15, with a 150 mm diameter and M10 handle thread, offers finer control, a bit more leverage, and slightly greater weight—making it ideal for applications needing smoother adjustments