When compared to the average HSS drill bit, the Migiwata cobalt steel bits will provide you with significantly more strength and a much longer life span.
These drill bits have been made from M35 cobalt steel with extra molybdenum to create an extra-strong alloy that is not only heat resistant but cuts faster too. You won’t have to worry about the metal drill bits “walking” either as the 235-degree cut points penetrate fast with a lot less pressure applied. These drill pieces have a straight shank too, which will enable you to get a firm grip and center the drill bit more accurately.
This drill kit includes 13 pieces of varying sizes from 1.5mm to 6.5mm and is perfect for use with heavy-duty metals, such as cast iron and stainless steel. One of the highlights of this product is if the user isn’t 100-percent happy with the purchase then the company offers a replacement or full refund. Now that’s what we call excellent customer service.