Milwaukee THUNDERBOLT™ 17/64" Black Oxide Drill Bit features a thick core web that provides protection against side-load breakage, making it highly durable for tough jobs. Its corrosion-resistant coating enhances lubricity and extends the bit’s lifespan. Designed with a parabolic flute form, this drill bit efficiently clears away chips and debris while keeping the bit cool during use. The 135° split point tip prevents walking and ensures precise hole starts, delivering accurate results every time. This bit requires less effort when drilling through metal, wood, and PVC, and it performs effectively on curved surfaces. It is for use with a portable drill, making it a versatile and reliable choice for various drilling applications. Model Number: 48-89-2723