M5 - M25 Die Stock Handle Wrench 20mm-55mm Diameter Metric Round Die Holder

Match the die holder diameter to the outer diameter (OD) of your round die, not the thread size. For example, if your M10 die has a 30mm OD, select the φ30 holder. Check the die's stamped OD marking or measure with calipers before ordering.

Yes — this die stock handle is designed to fit standard metric round dies regardless of brand, as long as the die's outer diameter matches the selected holder size. It is not compatible with hex dies or adjustable split dies.

The φ45 holder is listed as covering M12–M20 thread sizes. However, the actual thread size depends on the die you insert — the holder accommodates any round die with a 45mm outer diameter, which typically corresponds to that range in standard metric die sets.

The wrench itself is made from hardened steel and can apply the torque needed for most threading tasks. For very hard materials like stainless steel, use appropriate cutting fluid and take shallow passes to reduce stress on both the die and the workpiece.

Yes — the die stock handle holds the die mechanically via set screws and does not restrict rotation direction. As long as your left-hand thread die fits the holder diameter, you can use it by rotating the wrench counterclockwise in the standard way for left-hand threading.

Multi-packs are cost-effective if you work with multiple die sizes regularly, need a spare for a second workstation, or want to stock your workshop for ongoing maintenance work. The per-unit price decreases with larger packs, making them a practical choice for frequent users.

Ensure all set screws are fully tightened against the die before starting. Inspect the set screw tips periodically — worn tips reduce clamping force. If slippage occurs, check that the die OD matches the holder size exactly, as an undersized die will not seat securely.