The Kupo Super Viser Center Jaw Clamp with its Indexed Baby Pin is constructed from high-quality aluminum and steel. This cool product features a 5/8" (16mm) baby pin positioned at a 90-degree angle from the clamp. The baby pin can easily be rotated along the shaft and securely locked into 8 different positions with each position set at precise 45-degree increments and is locked down by a captive heavy-duty knob. The jaw features a unique mechanical interlocking rubber pad which provides a strong and solid grip yet protects the surface it's clamped around. It can mount securely onto round and square objects or just about any unique shape up to 3.5" (9cm) in diameter. The Super Viser Center Jaw Clamp with Baby Pin is the ultimate solution for professionals seeking reliability, versatility, and ease of use.