American Photonics Boss Laser® Kit - Retrofit your laser head to use our Alignment Tool and lens system 🧼 Hassle-Free Lens Maintenance: Keep your lens crystal-clear without even touching it. 🚫👆 🎯 Zero-Stress Focusing: The lens is glued in the tube for easy and stress-free focusing. 🧘 Pick Your Ideal Focal Length 📏 38.1mm (1.5"): Perfect for high-precision engraving and light cutting tasks. 50.8mm (2.0"): A versatile choice for engraving and medium cuts. 63.5mm (2.5"): Ideal for deeper cuts and thicker materials. 101.6mm (4.0"): When you need to go deep or work with super-thick materials. 💌 Custom Focal Lengths: Need a different focal length? We've got you covered—for the same price! 🤖 Compatibility Heaven 🌟 This kit is compatible with a broad range of CO2 Laser Machines®️, including but not limited to: Brand - OEM Machine Lens diameter Mirror link RLA Alignment Tool Kit link Boss Laser Boss 1630 20mm 25mm 20mm RLA Boss kit Boss Laser Boss 2440 20mm 25mm 20mm RLA Boss kit Boss Laser Boss 3665 (Dual head) 20mm 25mm 20mm RLA Boss kit Boss Laser Boss 4055 20mm 25mm 20mm RLA Boss kit Boss Laser Boss HP 5595 Dual head 27.94mm 25mm Boss kit Boss Laser Boss LS-1420 20mm 25mm 20mm RLA Boss kit       📐 Precision Guaranteed 🎯 APC guarantees a +/- 0.15mm (.006") tolerance on all of our lens focal lengths. 📏 Perfect Focal Point 🔋 The distance from the front of the nozzle to the focal point is exactly 10.5mm—just like a AAA battery. 🛠️ Professional Mounting 🌟 We highly recommend letting us mount your lens. We'll do it to the highest standards in the best possible environment. ⚠️ Disclaimers: All brand names, logos, and trademarks are properties of their respective owners. Compatibility is for reference only and does not guarantee a perfect fit. Custom focal lengths are subject to availability.