mandrel

"The factory is machining metal parts for the new car model. "

"My friend told me there was something in the box, but I didn't know what it was yet. "

"thread a needle"

"The carpenter carefully measured the workpiece before cutting it into a table leg. "

"The child was creasing the paper while drawing, making it hard to color on. "

"Asphalt, composed of oil and sand, is a widely used material for roads."

"The potter is shaping the clay into a beautiful vase. "

"My backpack was securely fastened to the chair, so I knew my books would stay put during the presentation. "

"A CPU is a component of a computer."

"The machinist carefully assembled the new engine for the school's science lab. "

"The bakery is enlarging its storefront to accommodate more customers. "

"The metal parts of the bicycle were precisely machined in a factory. "