The drill guide is made from aluminum alloy, this material offers the resiliency and flexibility you need without sacrificing the strength and durability you expect.
Adjustable drill guide is a great way to get started building with glass drill bit.
Adjustable plates opening length is 25-45mm, large enough to put in all sizes hole saws.
More accurate drilling, easy to store and can be used for many times.
Guide hole saw or drill bit to drill clear holes on tile, glass, marble, fish tank, granite, ceramic, etc.
