Working under a microscope changes how you use a hot air gun. Your handpiece sits at an angle, but the chip you need to heat is directly below the lens. A straight nozzle forces you to compromise — either you lose your view or you lose your aim. The 45 degree 9mm nozzle for Quick 861DW fixes this by bending the airflow path itself, so your handpiece stays at a comfortable microscope angle while the hot air still lands exactly where the chip sits. This nozzle is a sleeve, not a full replacement part. It sheathes directly onto the original Quick 861DW air gun mouth, so installation takes seconds and needs no tools beyond your hands. Once seated, it channels hot air through a 45 degree curved path and out through a 9mm opening — wide enough to cover CPU-side components and larger ICs in a single pass, without spreading heat across the whole board. You'll reach for this nozzle most often during CPU side heating on phone motherboards, a job that ordinary straight nozzles genuinely can't handle well. When a chip sits close to other components, heating it from directly above risks damaging neighboring parts. The 45 degree angle lets you approach from the side instead, concentrating heat on the target IC while keeping surrounding solder joints and components out of the direct airflow. Pakistani repair workshops run this kind of tool hard — back-to-back CPU changes, reballing jobs, and board-level repair on dead phones all day. The nozzle is made from heat-resisting steel that holds its shape through repeated hot-cold cycles. It won't deform or lose its 45 degree bend after weeks of daily use, which matters when your workflow depends on consistent aim every single time you pick up the handpiece. Fit matters more than most technicians expect with sleeve-style nozzles. Because this one slips over the existing air gun mouth rather than screwing in, a snug seal keeps hot air from leaking out the sides — leakage here means slower heating and wasted time on jumper lagana or IC change jobs where every second under heat counts. If you notice the sleeve sitting loose after some use, pinching the middle section gently with pliers restores the tight fit without needing a replacement. This 9mm size sits at the larger end of the common nozzle range for the 861DW, making it the right pick for bigger ICs, larger BGA chips, and CPU packages rather than small SMD components. Technicians typically keep a few sizes on the bench — 6mm and 7mm for tighter, smaller-footprint work, and 9mm for the CPU and larger chip jobs where wider, more even heat coverage speeds up the reflow without missing the edges of the pad. In a typical repair sequence — diagnosing a dead-after-flash board, isolating a faulty CPU, then moving into reballing — this nozzle sits right at the heating and removal stage. Get consistent, angled heat on the chip, lift it cleanly, and move into reballing without fighting your equipment for a straight line of sight. For any shop running microscope-based board repair on the Quick 861DW, this is a small part that removes a real daily friction point.