Library › Hardware › Tri-clamp racking arm: 1½ in clamp body and ½ in arms, 2 to 6 in reach

½ in (Ø12.7 × 1.6) arm

½ in (Ø12.7 × 1.6) arm: 60 straight through the body, 90° bend on R25, 6 in reach

Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.

STEP STL free, CC BY 4.0 (credit "Xem Studio")

Let your AI pull this. Add https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.
Set it up →

From the full sheet

Tri-clamp racking arm: 1½ in clamp body and ½ in arms, 2 to 6 in reach: every size, notes, mating features and sources. What is a tri-clamp racking arm?

Other sizes