● The Phoenix Contact TSD-M 3NM is a professional adjustable torque screwdriver designed for controlled fastening between 1.2 and 3.0 newton meters.
● Manufactured in the Czech Republic (P/N 1212225), it complies with ISO 6789 and EN 26789 torque accuracy standards.
● This blog provides a full textual guide for operating and understanding the tool, requiring no external images or manuals. ⚙️
● The screwdriver features a two-tone ergonomic handle with non-slip grips and a compact shaft ending in a quick-release bit holder.
● Just below this bit holder, you’ll find a metallic shaft engraved with numeric torque values ranging from 1.2 to 3.0 Nm.
● This metallic shaft is the actual adjustment mechanism — it rotates to set the desired torque.
● On top of the black adjustment ring, there is a small white arrow printed or molded — this arrow is your alignment guide.
● Before adjusting anything, ensure the screwdriver is oriented so that the white arrow on top of the black ring is clearly visible and directly facing you.
● Once the arrow is visibly aligned toward you, press and hold down the black adjustment ring located just below the quick-release bit holder.
● While continuing to hold the black ring down, rotate the main handle (the black-and-blue ergonomic grip) to adjust the torque setting—this rotation will simultaneously turn the metallic shaft with the engraved torque scale. 🔧
● Turning the handle to the right increases the torque, moving to higher numeric values on the engraved shaft.
● Turning the handle to the left decreases the torque, moving to lower numeric values.
● Stop turning when the desired torque value on the metallic shaft aligns precisely with the white arrow on top of the black ring.
● Release the black ring to lock the torque value securely in place.
● Once locked, the screwdriver will provide a distinct click during use, indicating that the preset torque value has been reached and tightening should stop immediately.
● Always verify that the arrow points exactly at your chosen torque before applying the screwdriver to ensure precision and safety. 🛠️
● Insert a standard 1/4” bit into the blue quick-release holder until you hear a click.
● Pull the collar forward to release and change bits; the mechanism is designed for single-handed use.
● Only use bits compliant with DIN 3126 C 6.3 or E 6.3 for optimal performance. ✅
● Do not use this tool to loosen screws — it is strictly intended for controlled tightening.
● Never exceed the 3.0 Nm maximum rating, as this may damage both the tool and the workpiece.
● Store the tool with the torque set to 1.2 Nm when unused for long periods to preserve internal calibration.
● There is no official requirement to keep the tool in its case, but storing it in a clean, padded container helps prevent wear or impact damage.
● The device requires no batteries, no digital settings, and no recalibration under normal use.
● With proper handling, the TSD-M 3NM will provide years of precise, reliable service. 📏
My Diary - Leonardo Cardillo 