SDG #343 Handskit T12-X2 Desoldering Tweezers System

The Handskit T12-X2 is a 72W T12 cartridge station sold either with desoldering tweezers alone or, as reviewed here, with a T12 soldering handpiece as well. The control unit is an off the shelf case with a custom front panel, a square TFT rather than the OLED shown in the listing, a rotary encoder with push button, a five pin tool connector, an ESD earth point and a fused IEC inlet with a double pole switch. The tweezers are rated at 60W and are essentially two T12 cartridges in a lightweight plastic body with no alignment adjustment beyond rotating the cartridges, and one side moves noticeably more freely than the other.

Inside, the 190W Handskit branded 24V supply is well secured and reasonably built, though the capacitors are unbranded. The chassis earth is the familiar T12 weakness: a thin wire to the front panel PCB rather than a fault rated connection, so it should be replaced with a properly crimped conductor before use. The front panel board carries two MOSFETs, so both tweezer heaters are driven, though only one thermocouple is sensed and there is no independent temperature control. An Artery AT32F421 microcontroller runs the stock firmware, which offers sleep and standby times, step size, a single offset adjustment and a work mode selection between iron and tweezers.

Calibration is the decisive problem. With the display at 345C the tip measured around 415C, and the error is a slope rather than an offset, which the menu cannot correct. The tweezers remove two terminal 0805 parts cleanly but struggle with three pin packages and tight spaces, and the iron solders without difficulty while peaking over 150W with the tweezers fitted. There is adequate power available, but without a proper calibration routine the displayed temperature cannot be trusted.