Kupo KCP-645 Pivoting Boom Arm Clamp

Kupo KCP-645 Pivoting Boom Arm Clamp – fits 30–35mm booms with 28mm pin and 16mm receiver

The Kupo KCP-645 is a pivoting boom arm clamp designed for secure attachment and flexible positioning. It uses a solid aluminum die-cast body combined with a plastic cardboard insert to accept a wider tubing range. As a result, the clamp accommodates boom tubes with diameters from 30 to 35mm while allowing pivoting adjustment for precise placement.

Key features

• Solid aluminum die-casting provides a durable clamp body for reliable on-set use.
• Plastic cardboard insert adapts the clamp to a wider tubing size range (30–35mm).
• Includes a 1-1/8” (28mm) male pin for secure mounting into compatible receivers.
• Features a 5/8” (16mm) female receiver so the clamp can accept a baby pin or other 16mm fittings.
• Pivoting design gives greater flexibility and fine adjustment when positioning a boom arm.

Compatibility and common uses

The clamp’s combination of a male pin and a female receiver makes it versatile on set. You can mount the clamp on a baby pin or insert the clamp’s male pin into a junior receiver. This dual-connection approach allows you to integrate the clamp into typical grip and rigging setups, enabling straightforward attachment and repositioning of boom arms and related gear.

Specifications

FAQ

Question: Will this clamp fit my boom tube?

Answer: Yes. The clamp accepts tubing between 30 and 35mm in diameter thanks to the included plastic cardboard insert, which adapts the clamp to that range.

Question: How can I mount the clamp to my stand or arm?

Answer: The KCP-645 offers a 1-1/8” (28mm) male pin and a 5/8” (16mm) female receiver. You can insert the male pin into a junior receiver, or mount the clamp on a baby pin using the female receiver. This gives you flexible mounting options on standard grip hardware.

Question: Is the clamp durable and suitable for regular use?

Answer: The body is made from solid aluminum die-casting, which provides a robust structure for regular on-set use, while the plastic cardboard insert enables secure fitting across the specified tubing sizes.