By rotating back and forth, the carbide tip of Hand Twist Drill easily drills a hole in a knotweed stem. It's easy to do, makes a visible hole, and reduces stems splitting.

• 3/16” (0.5 cm) carbide tip (Do not attempt to sharpen.)
• Overall length 4.7” (11.9 cm)
• Weight: 1 oz (28 g)