Milwaukee SHOCKWAVE™ 1" ECX Impact Bits, 2-Pack feature the innovative Wear Guard Tip™ that enhances wear resistance and maintains a secure fit throughout the bit's lifespan. Designed with an optimized Shockzone™ to absorb peak torque, these bits prevent breaking under heavy use. Crafted from Custom Alloy76™ steel and treated with heat specific to each tip type, they deliver 50 times more durability than competitor impact driver bits. I for use in impact drivers and drill drivers, each bit is laser etched with its size for quick and easy identification, making your work more efficient and reliable. Model Number: 48-32-4440