The Kwikset Pinning Kit is a high-quality kit that is specifically designed for professional locksmiths. It is manufactured in the USA and includes everything you need to rekey Kwikset locks. The kit comes with OEM design pins, .115 diameter pins, 15 sizes, and .115 diameter springs. It also includes 100 pieces of each size, providing plenty of pins and springs for multiple rekeying jobs. The kit is packaged in a heavy-duty metal box with a leak-proof lid, and has extra room for your rekeying tools. Keep your Kwikset locks functioning properly and avoid the hassle and expense of replacing them with the Kwikset Pinning Kit.