Rowiz Glass Hole Opener Glass Drill Bit Set,Glass Marble Ceramic Set with Hole Diameter 28mm/30mm/32mm/35mm/38mm（Pack of 5）

• Material:high-quality emery,nickel-plated surface.
• Product description:Lightweight design,sharp and durable,non-slip and wear-resistant.
• Size:The hole diameter is 28mm/30mm/32mm/35mm/38mm.
• Applicable equipment:general handle,suitable for electric drills and bench drills.
• Uses: It can drill holes in glass,marble,ceramics,tiles,etc. But it cannot be used for tempered glass.

Specifications: Product Name:Glass Hole Opener Material:Emery Specification:28mm/30mm/32mm/35mm/38mm How to use:During use,water must be added to the glass to keep the cut surface moist.When starting to use,first contact the cutting surface at a 45-degree angle to gradually form a crescent-shaped groove mark,which can play a role in positioning,and then use the drill vertically. Included packages: 5Pcs drill