Wiha Sys 4 Micro Bit Adapter 4mm to 1/4" 25mm

It worked well on my Victorinox Camp.

Nicely constructed with a good magnet that holds my 4mm bits securely. Now I can use my 4mm bits with any 1/4” bit driver or accessory that I already own without buying one specifically for 4mm. Free shipping, WIHA quality & great price (<7cad) I’m pretty happy with this purchase.

Great if you have 4mm micro bits and need to use them in a 1/4 inch bit driver.Good quality.

A quality bit, coated well packaged see photo. Works like intended.

I have a lot of smaller bits for my electric pencil drill, whose torque is often not strong enough to tighten the screw all the way. This adapter, paired with the appropriate handle, lets me use my small drill bits manually. The magnetic strength is excellent, but no so strong that the bits can't be easily removed. My spouse, whose hand strength is better than mine, uses this adapter to tighten down all the screws in my metal models. Highly recommended!