I think it has to do with the torque applied under constant load, as to a screw in wood vs. a metal screw where the max. torque comes only a the end of the screwing process.
When you simply drive a screw into wood the motor of the PDC is "under load" from the get go. In this case it can reach +- 40Nm of torque.
If you fasten a bolt, the bolt/fastener/nut will spin almost freely at first. The motor of the PDC is only "under minimal load" and then when it hits the metal it's stopped abruptly -> is "whacked" in the process. In this case it can reach +-60Nm of torque.
And yes, you can have a situation in woodworking where a hard screw-joint (of some sort) is present.
Also you need to understand that the PDC is constantly electronically monitored and will shut off when max. torque (either pre-set or not) is reached.
(What I wrote above is also the reason why most brushed drills have a higher torque rating for hard screw-joints. Because there is more mass (rotor i.e.) for the "whack". )
My advice, forget the numbers - work with the PDC and be amazed. It's a great piece of kit, I've been using it for many hours since I got it and I love it and it amazed me more than once. It's the perfect partner for my CXS.
My advice, forget the numbers - work with the PDC and be amazed. It's a great piece of kit, I've been using it for many hours since I got it and I love it and it amazed me more than once. It's the perfect partner for my CXS.
Love mine! The ergonomics are fantastic and its always a pleasure using it.
There are other drills out there with impact driver torque figures etc. but none of them can drill the clean-crisp zero tear out holes @3800rpm in wood that the PDC can.