2Pcs Diamond Step Drill Bit, 20mm 35mm 50mm Diamond Hole Opener Puncher Round Hole Cone Grinder Bit for Marble Stone

Product name: Diamond Step Drill Bit<br>Easy to install and use<br>Packaging details:<br>2pcs Diamond Step Drill Bits<br>1pc Conversion rod<br>Color: As Shown<br>Material: Metal<br><br>Package Contents:<br>1 set * diamond drill bits<br><br>Only the above package content, other products are not included.<br>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

• M10 thread interface is used, which can be easily connected to the 100mm angle grinder; the package contains a special conversion rod that can be quickly adapted to the use of handheld electric drills to meet the needs of different construction scenarios.
• It integrates the functions of drilling, hole expansion, chamfering, and polishing existing holes. It is widely used in various materials, including concrete, tiles, marble, , quartzite, and microcrystalline stone.
• 20mm/35mm/50mm are available to meet different hole diameter requirements, achieve precise hole expansion, and significantly improve work efficiency
• Designed for precise hole opening, it can easily meet DIY and professional needs. The three-step size makes drilling operations time-saving and labor-saving
• High-density diamond particle coating is used, the is and , and can quickly penetrate hard materials such as concrete, tiles, marble, etc.