- With the flexible hose, you can work in narrow places. Thick tubes and extended mounting rings make the flex axles stronger and more durable. 2. There is no specification of the corresponding interface of the electric grinder, provided that the electric grinder or drill can be inserted. The axis connector should connect with electric grinder. 4. Use it to extend the power tools to grind the small workpiece in a specific area. Specification: Material: metal. Installing the spindle as shown in the attached photo: 1) Remove the rotary nut from the top cover of the rotary tool. 2) Slide the collar nut onto the axle core. 3) Insert the axle core into the neck. 4) Tighten the collar nut. Make sure that the axis core is firmly under the instrument. 5) Shaft connector screw in rotary tool. This will ensure that the axis core is thrown towards the axis. Broca Installation Instructions: 1) Insert the included L-bar through the hole in the side of the axle clamp. 2) UNATORNILLE The axle