JTX JS-03 IC Point Grinding Pen Tip 0.4mm

Working on a dead phone that needs an IC change karna after a failed flash, or prepping a Qualcomm or MediaTek board for reballing, comes down to how clean you can get the solder point before you touch it with heat again. The JTX JS-03 IC Point Grinding Pen Tip 0.4mm is built for exactly that stage of the repair. It uses laminate tungsten steel with precision knife teeth cut into the grinding head, giving you a bit that holds its edge under sustained high-speed contact instead of dulling after a handful of boards. Android motherboards carry solder points that sit slightly larger and at different pitch spacing than Apple boards, and the 0.4mm diameter on this tip is sized specifically for that range, so you get consistent contact on Android PMIC, CPU, and RF IC points without the tip skating off the pad or gouging the surrounding mask. Technicians running JTX, Sunshine, or other compatible electric grinding pens and CNC IC grinding machines will find the shank concentricity on this tip noticeably tighter than budget alternatives. A straight, true-running shaft means the tip spins on center at working RPM, so you avoid the knife jumping and shaking problem that throws off a technician's control right when precision matters most, on a board with an active hardware fault and no room for a slip. The spherical carving knife geometry shapes the grinding head into a rounded cutting profile rather than a flat abrasive surface, letting you work the point evenly on all sides instead of flattening it in one direction. Paired with that shape is a large-capacity spiral flute cut into the body of the tip, which channels ground-away tungsten and solder residue up and out of the cutting zone as you work. That chip clearance matters more than it looks on paper, because a clogged tip stops cutting cleanly and starts pushing debris back into the point, which is how technicians end up reworking the same pad twice. On a workshop bench running through boot loop and dead-after-flash cases back to back, that saved time adds up across a full day of repairs. The tip mounts into standard electric grinding pen and IC grinding machine collets used across the Android repair workflow, which keeps it usable whether you are running a handheld pen for spot work or a CNC-style grinding machine for higher-volume board prep. It fits into the same rework line as your hot air station, ISP pinout tools, and reballing kit, sitting at the step between removing a faulty IC and getting the pad ready for a new one or for direct-point programming. For diagnostics-driven repair, where you are chasing a hardware fault that only shows up after visual inspection under a microscope, a clean, evenly ground point makes the difference between confirming a lifted pad and misreading a board that still had old solder residue sitting on it. The high-speed alloy composition behind the tungsten steel head is built to handle continuous grinding cycles without losing hardness, which matters if your shop runs multiple grinding sessions in a single shift rather than one-off jobs. Technicians handling network issue and charging issue boards where the root cause traces back to a specific PMIC or charging IC will find the 0.4mm size sits right in the working range those components need. Whether you are prepping a point before jumper lagana on a bridged trace or clearing a pad ahead of IC reballing, this tip is built to hold its geometry through repeated use rather than needing replacement after a handful of boards.