MIKIKI 3/8" Pocket Hole Drill Bit with Depth Stop Collar 1/4 Hex Shank Replacement Twist Step Drills for Kreg Manual Pocket Hole Guide Jig Master System (6.3" Length) FeaturesHSS Materials: These Pocket Hole Drill Bits are made of high speed steel. It combines high hardness, high impact resistance and high heat resistance. Ideal for making high quality drill bitsWide compatibility: Drill guide is perfect for kreg manual pocket hole jig system or used alone. Used for wood hole punching&positioning, aluminum punching, thin metal punching and so onPackage Includes:2 x twist step drill bit; 2 x stop collar ; 2 x wrench, Complete accessories to assist with wood drilling, ideal for woodworking or DIY enthusiastsSatisfactory service: Our pocket hole drill bits provide 30 days money back and one year warranty. If you have any questions about it or after-sales problems, please contact us in timePerfect replacement: these drill bits are a good alternative to the old or worn drill bit. Stable and sturdy enough to perform a variety of tasks. Easily into any kind of wood, and leaves a clean hole .