Thin, tapered claw used for tearing
• (n.) One who, or that which, pinches.
Pinch'er noun One who, or that which, pinches. 
HMS Pincher was a British Algerine Class minesweeper of 950 tons displacement launched in 1943. HMS Pincher was powered by two 3-drum type boilers providing a top speed of 16.5 knots. She carried a peacetime complement of 85 and between 104 and 138 in war. For defence she was armed with one 4-inch dual-purpose gun; four 40 mm anti-aircraft guns and...