Professional Ruby Whetstone, 6 PCS 30000# Grit Polishing Oil Stone Sharpener Sharpening Stone Whetstone Tool Set

• The whetstone is lightweight, portable and anti-friction.
• The whetstone has a grit of 3000# and can be used for polishing and smoothing the edges.
• Easy stone change in sharpening system. Or work yourself to easily sharpen knife, chisel, chisel and tools.
• The sharpening stones can also use oil or water.
• 6 different sizes to choose from, you can choose the right size according to your needs.

Initialization settings: 1 After initialization, all opening cards and passwords saved before the door lock will be cleared. 2 Set the switch position on the back of the front lock body and the socket position to the next 10 mm position; turn on the power, press the setting switch, and the door lock will sound "DI, DI, DI" for three long sounds, and the initial setting is completed. Package List: 1 x Front lock body, 1 x Rear lock body, 1 x Lock slot, 1 x Key card, 6 x Mounting screws, 1 x Installation instructions