I got a call today from Lynn Bauman, Inventor of the Twist-Lok. He had read some of my blog and said he and his engineers agreed with a lot of what I had said, especially about the
Dual Drill. First off, it was neat that he gave me a call after reading some of my posts and I thank him for the recognition (and a topic to write about). Secondly, his product actually looks cool. (Clicking the picture below will open a much clearer version.)

Twist-Lok Strengths
As I see it, the Twist-Lok has several strengths. I'll list a few below.
1) It works with any bit. You don't need to buy those funny "Rapid-Load" style bits.
2) No inline gears, which means that the power of your drill is passed through to the bits (unlike the Dual Drill.)
3) Quick. You don't even need to pull a bit out to change from drilling to screwdriving.
4) Long, narrow nose. At first glance, it seemed awkward. After thinking about where screws normally get installed, a chuck is in the way a lot of times so that long nose would actually be helpful.
5) Inexpensive. Notice I didn't say cheap. ;-) It's not as inexpensive as a rapid-load kit, but it is still very reasonable.
Twist-Lok Concerns
There are a few things which still concern me about this setup, but nothing like that other one I wrote about. (I know, I need to quit referencing it.)
1) Trueness of drive. If I put that long screwdriving shaft on the end of my drill and pull the trigger, how much wobble will there be at the bit?
2) Length of bit. Ok, so that's not normally an issue when driving drywall screws, which is what most pilot holes are likely for. But they did show a lag bolt on a deck being installed, which will take a much larger bit and those are usually longer.
3) Materials. Sure, driving most screws won't be something you've got to worry about twisting the shaft with, but being hollow and that length makes me wonder what it's made out of that can take some abuse.
The True Test
The true test for me will be when we get them in. Yes, our branch manager was interested in carrying them. (Hint: Lynn, get me some info.) As an industrial supplier, we're positioned to have them evaluated on some heavy-duty jobs in a very short amount of time. Once we have a few of these in use, I'll report back with how people like them. Until then, you'll just have to wonder and do some research yourself.
Labels: Screwdriving