Bad Dog Drill Bits

I finally got around to looking into Bad Dog Drill bits. I read about them in the May issue of GRM. Has anyone used these? I'm talking about the Multi-purpose bits. What puts me off is the guarantee:
"Bad Dog Drill Bits are covered by a Lifetime Satisfaction Guarantee. We will repair or replace any Drill Bits that have become dull or damaged."
Then they go on to outline the prices to replace drill bits. WHAT!! So, your guarantee is that, if I break a drill bit, you'll allow me to buy another one (discounted maybe, I can't find a price yet). Harbor Freight offers the same 'guarantee'. In fact, a neighborhood garage sale offers the same guarantee.

Our company had a set a long time ago. IIRC they weren't anything special.

Ah, the trade show specials. I think I still have a set.

I bought them years ago, they didn't work worth a darn. Took them back the next year. Was told they accidentally made them defectively. Think the claim was the carbides were brazed on backwards (an absurd claim). Got a new set. They worked just as badly.

They are mediocrely ok at drilling masonry. Which is what they actually are, masonry bits.

First, they're "drills", not "drill bits". Second, they're masonry drills w/ the tip geometry altered to a compromise to allow it to make inaccurate holes in both masonry and other materials. I earn a significant part of my income making holes in things so I have lots of drills. But the only time I need a carbide spade-pointed drill is when I reach for the Makita SDS hammer drill. I have a couple solid carbide drills in odd sizes I've needed to drill exotic metals and some special micrograin carbide drills for removing broken taps.

But for everything else from titanium to balsa wood I use good quality american made high speed steel drills. Nothing fancy or funny. Same deal every machine shop on earth uses.

BUT -

I pay attention to workholding, lubrication and most importantly, speed and feed rate.

A sharp, new drill fed too slowly and too high a speed in stainless will dull in a few revolutions then just make heat. Fed for proper chip load it will chew cheerfully through lots of holes. Aluminum castings dull drills faster than stainless due to the inherant abrasiveness.

If you're making accurate parts that will incorporate inch and metric fasteners, pins and the like, you need a full drill index of fractions from 1/16" - 1/2", letters A-Z and numbers 1-60.

For basic use, I have one of these 29-piece Milwaukee Thunderbolt sets. They're about $60 and used correctly will last a long time.

I'm too cheap to use cheap tools in general, drills in particular.