A tool for cutting the isthmuses in slots of a plate comprising PCBs includes: a base plate, a spindle having a shank and a cutting tip, a spindle support fixed to the base plate and revolvingly supporting the spindle, a head fixed to the base plate and provided with a through hole wherein the shank of the spindle is disposed, a guide mounted on the head and provided with a through hole wherein the cutting tip of the spindle is disposed, in such manner that a portion of the cutting tip of the spindle protrudes from the guide, the guide having a guide rib disposed in alignment with the cutting tip of the spindle and suitable for being inserted into the holes of the plate comprising the PCBs to guide a relative movement of the plate comprising the PCBs with respect to the tool.

A tool for cutting the isthmuses in slots of a plate comprising PCBs includes: a base plate, a spindle having a shank and a cutting tip, a spindle support fixed to the base plate and revolvingly supporting the spindle, a head fixed to the base plate and provided with a through hole wherein the shank of the spindle is disposed, a guide mounted on the head and provided with a through hole wherein the cutting tip of the spindle is disposed, in such manner that a portion of the cutting tip of the spindle protrudes from the guide, the guide having a guide rib disposed in alignment with the cutting tip of the spindle and suitable for being inserted into the holes of the plate comprising the PCBs to guide a relative movement of the plate comprising the PCBs with respect to the tool.

In an embodiment, a soldering tip is configured for a number of solder pads at a number of radial locations and includes a soldering head, a shank, and a number of soldering feet. The soldering head is made of a thermally-conductive, corrosion-resistant material. The soldering head defines an upper head surface and a curved forward extension, the curved forward extension descending from the upper surface. The curved forward extension is lengthwise convexly curved and defines an extension face obverse to the upper head surface. The shank is coupled to the upper head surface of the soldering head and is configured to operatively couple with a soldering iron. The shank is made of a thermally conductive material. The soldering feet are operatively coupled to and protrude from the extension face. The soldering feet are configured to transfer bonding energy to the corresponding solder pads.