Torque Wrench Adapters — Specs & Use

Adapters for a 14×18 mm interchangeable head torque wrench. Pair with the matching PDX CNC adapter key for consistent, repeatable tightening.

Compatible Torque Wrench

Wera X 4 Torque Wrench 200 N·m (compatible with all adapters below).

How to use

  1. Select the adapter that matches your collet series.
  2. Attach adapter to your 14×18mm torque wrench.
  3. Tighten to the torque below.

Recommended Torque

Collet Series Torque (ft·lb) Torque (Nm) Adapter
ER16 42 56 TWA-ER16
ER20 55 75 TWA-ER20
ER25 66 90 TWA-ER25
ER32 107 145 TWA-ER32
ER40 136 185 TWA-ER40
O716 / APU13 (Open) 33 45 TWA-O716

Note: Torque values assume clean, lightly oiled threads. If your tooling maker specifies otherwise, follow their value.

📥 Download PDF Torque Spec table