Features: Soft shaft at both ends of the size: connecting the drill hexagon size 6.35mm (1/4) connection batch head hexagon size 6.35mm (1/4) 1.It can be curved, the shell is separated with the internal soft pole when the shaft bending. This shaft worked it only internal rotation, the external arbitrary point is not followed with the rotation 2.This product is suitable for Small wrench / Adjustable speed DC hand drill /Pneumatic screwdriver/Torque drill , the speed should not be too fast 3.This product is perfect for small space operations, suitable for computer chassis, electrical cabinets, furniture, electrical appliances, and other screwdriver can not work place.(eg:space dead angle) Product including: 1 quality of the Flexible shaft/ connecting link Note: It can not apply to hand drill, If there is no torque adjustment of the drill, you put the screws tightened, the drill will continue to turn and will damage the shaftBest Bit for Tight and Awkward Spaces：Yosoo extension bits can be attached to drill, impact or multi bit screwdriver. It bends, twists, and turns to get into the tightest and awkward spaces with ease
Flexible Shaft: Connection hex shank drill site size 6.35mm (1/4) Connecting parts of the batch Hex size 6.35mm (1/4）
Safe: Flexible out shield protects your hand while inside shaft rotates. Great for attaching to your power screwdriver. Attaches easily and stays secure until you remove it
Applicability: It is an important tool for hardware maintenance and repair, including computer chassis, electrical cabinets, furniture, electrical appliances, etc.
What You Get：Yosoo Flexible Extention Screwdriver Drill Bit Holder, Yosoo worry free guarantee and friendly customer service