A great thing just got better! We have improved Peterson's popular I-Core tool set with the addition of two extra tools. Our C tension tool will help with those wide-open key ways, such as the E key way. Our Slender Reach pick proves effective on I-Core cylinders time after time. Already have the original set? Have no fear! The two new parts are available individually. Set contains A, B & C I-Core Tension tools plus Slender Gem and Slender Reach.