Revitalize your Singer sewing machine with the GEAR 174204AS Lower Right Hook Drive Shaft Set! Crafted from durable plastic resin and a sturdy metal base, these new bevel gears ensure smoother, quieter operation. Perfectly fitting models 600 Series, 620-649, this 2-gear set replaces 174204 and 163996, offering enhanced performance with new angles for better meshing. Upgrade your sewing experience today! ==== FEATURES: ==== Introducing the GEAR ANGLED SET for SINGER Sewing Machines - the ultimate upgrade for your 630-640 series! This high-quality, non-OEM replacement set is designed to keep your machine running smoothly and efficiently. Here are three standout features that make this product a must-have for any sewing enthusiast: (A) **Precision Engineering**: Crafted with a durable plastic resin and a robust metal base, these lower horizontal rotating hook drive shaft bevel gears (#174204AS) ensure seamless operation and longevity. Say goodbye to frequent replacements and hello to consistent, high-quality performance. (B) **Perfect Compatibility**: Specifically designed to fit all SINGER 630-640 series models, this gear set effortlessly replaces the original parts (#174204 and #163996). Enjoy a hassle-free installation process and get back to your creative projects in no time. (C) **Enhanced Durability**: Built to withstand the rigors of regular use, our GEAR ANGLED SET offers superior resilience and reliability. Whether you're a professional seamstress or a passionate hobbyist, this gear set will keep your machine in top-notch condition, stitch after stitch. Upgrade your sewing experience with the GEAR ANGLED SET for SINGER - where precision, compatibility, and durability come together to deliver exceptional results!