The Diablo 12-122 is a 1/2-inch double grind double flute straight bit that features highly durable materials and is designed for strength and longevity. By creating new designs accompanied by tested and proven materials, Diablo Tools is able to deliver you the best and one of the most reliable tools that you’ll ever own. Here at PlumbersStock, customer satisfaction is our greatest goal. We strive to obtain the best quality products available and offer them at a relatively low price. PlumbersStock offers a range of products for bathrooms, kitchens, gardening, waterworks and much more!