Viking Drill and Tool by Norseman 88660 SP-26 Type 240-UB 135 Degree Split Point Magnum Super Premium Jobber Drill Set (26 Piece)

I have not used these bits long enough to comment on durability but the manufacturing quality and cutting performance is exceptional. Well worth the price, very glad I bought this set of bits. I will be buying from this manufacturer in the future with confidence.

The Viking UltraBor line is a fairly standard looking drill with a little flair. The 135deg split point is good, but nothing earth shattering. Being used to import drill bits, I was pleasantly surprised when every bit was straight, ground perfectly, and with consistently good quality. The index was well made and featured the size and decimal equivalent stamped for each bit. What I truly wasn't prepared for was the way these bits cut and how long they last. I use these bits both on a drill press and a lathe, I cut mild steel, aluminum, brass, bronze, stainless, delrin, and O-1 with them. My original test bit, an 1/8th inch single I purchased at a local welding supply store is still in good shape, even after my son tried to drill a hole through a carbide shaft. After a year and a half of abuse, it still works great. I don't use these bits in a hand held drill, for the cost of these bits, I can get many sets of cheap import bits for those applications. I've drilled wood with them but not often. These bits are designed for stainless and the issues related to drilling stainless. I've drilled 303, 304 and 316 stainless with these bits ( and lots of cutting oil ) without incident. They power through work hardening with ease, and produce a fine finish.I heartily recommend these bits for any metal work, especially stainless. Their longevity and toughness make them perfectly suited for alloys and stainless.