TEMO M35 Cobalt Spiral Flute Step Drill Unibit, 12 Size 3/16 Inch to 7/8 Inch, 1/4 Inch Hex Shank

The TEMO M35 Cobalt Spiral Flute Step Drill offers versatility and convenience for drilling various hole sizes in different materials. The step drill features 12 different sizes ranging from 3/16 inch to 7/8 inch, allowing users to easily switch between sizes without changing bits. The cobalt Construction ensures durability and longevity, making it suitable for drilling through steel and stainless steel. One of the standout features of this step drill is its performance in power drills. Users have reported that it cuts well and holds up even when drilling multiple holes in 14-gauge steel. The drill is also compatible with impact drills, although it may result in excessive wear and the potential for bits to break off, so it is advised to use safety glasses when using an impact drill. The step depth of the TEMO M35 is reported to be 5/32 inch, which some users have found to be too short for certain applications. For example, drilling a 9/16 inch hole through 1/4 inch stainless steel may require drilling from one side first and then completing the hole from the other side. In terms of durability, opinions are mixed. While some users have found the drill to hold up well even when drilling hardened steel with the addition of lubricant, others have experienced a decrease in performance after drilling a limited number of holes. Overall, the TEMO M35 Cobalt Spiral Flute Step Drill is a versatile tool with good performance in power drills. It is suitable for drilling through steel and stainless steel, but may not be as durable for heavy or continuous use.