This is a quick bit holder with a locking function. Model: YUYTOLBITM4P ■ Easy attachment and detachment just by inserting and pulling out! ■ If you're worried about dropping, firmly lock the bit with the locking function! ■ Can also be used with bits that cannot be magnetized! ● Details ・ Stable attachment to the driver with a rotation stop ・ Battery can be replaced with the attachment installed ・ Designed to the A-type 6.35mm hex bit standard ・ Mounting screws included ● Bulk purchase discount (Please request in the comment section before purchasing) ◇ 2 sets: ¥2,400 ◇ ◇ 3 sets: ¥3,450 ◇ ● Notes ・ Bits and electric drivers are not included. ・ If the distance from the hook insertion hole to the bottom of the battery is 57mm or less (e.g., 1.5Ah battery), please purchase the 2-bit insertion type. ・ If there is a defect, please contact us via message. ● Models confirmed for installation <10.8V> DF033 DF332 DF333 HP332 HP333 TD110 TD111 <14.4V> DF471 HP473 HP474 TD138 TP131 TS131 <18V> DF458 DF484 DF486 DF487 HP458 HP484 HP486 TD146DX TD149 TD171~3 TP141 TS141 <40V> DF001 DF002 HP001 HP002 TD001~3 * This product is an original product that has been continuously sold with improvements since the initial model was released in April 2021. As some of the products being sold are in the process of being patented, please refrain from producing/selling similar products that imitate the same idea. [Related keywords] DIY Drill driver Impact driver Electric screwdriver Driver bit MAKITA HiKOKI Hitachi Koki WH36D