Play NYT Connections Puzzle #300 Tue, Apr 9

Find groups of four related words Need hints?

Solve NYT Connections puzzle #300 - Group 16 words into 4 categories: EXTENT, RANGE, REACH, SCOPE, BRUSH, COMB, DRYER, IRON, ARMS, COAT, CREST, SHIELD, EAR, KETTLE, OIL, STEEL.