Wera 889/4/1 K Rapidaptor Universal Bit Holder for 1/4" Hex

très bien , fonctionne comme il le doit.

very good product

Portainserti a dir poco fantastico!!!! Nel mio lavoro utilizzo l’avvitatore con portainserti tutto il giorno sostituendo l’inserto in uso anche 40/50 volte in un’ora.Ho provato svariate marche di portainserti ma tutte con scarsi risultati,l’inserto si sgancia da solo o rimane bloccato e nn si toglie più..All’inizio ero indeciso se prenderlo o meno visto il costo elevato rispetto alla concorrenza e avevo paura di buttare altri soldi trovandomi con l’ennesimo portainserti deludente..ma devo dire,con estremo piacere,che mi sono ricreduto alla grande non appena l’ho provato.Il sistema di aggancio/sgancio dell’inserto è impeccabile,una volta agganciato l’inserto rimane ben saldo e per toglierlo basta una sola mano.Fantastico!!!Seppur con un costo elevato sono più che contendo di averlo preso,i soldi li vale tutto fino all’ultimo centesimo secondo me,per uno come me che lo utilizza nel quaotidiano non può esserci di meglio!!!Super super soddisfatto!!!

Been using wera products for a long time, from screw drivers, to bits, to allen keys. This attachment was affordable, small, compact, built well and works well with other brands of screw drivers too.

In a nutshell: Best all around quality, Best design, Best features, Best quick release bit holder. I use quick load bit holders on my 12v Milwaulkee Impact drivers. The small quick release on the impact drivers are small, difficult to grasp, and have to pull collar out in order to push the bit in. Awkward!! But this Wera quick release loader eliminates binding & makes rapidly changing bits an absolute breeze! This Wera tool is phenomenal & not only easily handles 1/4 shanks, but also the short 1 inch long straight shank bits (e.g. phillips, blade, star, square, etc.) with ease. Previously I used the DEWALT DW2505 Rapid Load Holder but I found it was too long (3inches) and awkward. This Wera is easier to grasp & eject, more precise holding bit alignment and 33% closer to the work for better accuracy, top quality, and smother operation all the way around than the China made Dewalt DW2505. It ejects everything very smoothly. And the magnet is designed to not over power the bit so that the bit slips out perfectly when released. No 'back holding' or tugging to remove the bit. This bit does it all and in a much more convenient, less bulky shorter 2in length vs 3in for the Dewalt. The Dewalt wobbles more and encourages bit walk due to it's longer length & looser tolerances. The Dewalt is also harder to control vs the shorter compact length of the Wera. Precise, under control, and easier to pop off the bit for the next one this Wera has increased my drilling speed, comfort & efficiency. It has eliminated a hassle and made things fun again. Wera is German made and the quality shows. It's an easy one handed operation,...Push in a new bit to automatically lock,... Pull back the collar to release and eject. I have an injury to my thumb and find the Wera collar is much easier on my joints to load /eject vs the Dewalt collar. I will be purchasing more of the Wera K Rapidaptors'. Hands down, this Quick Release Wera is in a class by itself. All of the 5 star reviews were correct. It's a pleasure to recommend a great product that deserves 5 stars with the good feeling that my purchase is helping support a free, democratic country.