Telescopic Covers Telescopic Covers (TC) are robust steel protection systems designed to protect machine guideways and precision components from metal chips, coolant, dust, and impact damage. Manufactured with precision-engineered stainless steel or mild steel sections, they provide maximum protection in high-speed and heavy-duty machining environments. Suitable for CNC machining centers, milling machines, lathes, and special-purpose machines where durability and long service life are essential.