2Pcs Diamond Step Drill Bit, 20mm 35mm 50mm Diamond Core Drill Bit Diamond Hole Opener Puncher Round Hole Cone Grinder Bit for Marble Stone Tile Concrete Granite Quartzite, M10 Thread

★★★★★ 4.7 52 reviews

US$7.60
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US$7.60
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Free shipping Free 30-day returns

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Product details

Management number 247378044 Release Date 2026/08/16 List Price US$7.60 Model Number 247378044
Category
  • Three-in-one size design: 20mm/35mm/50mm are available to meet different hole diameter requirements, achieve precise hole expansion, and significantly improve work efficiency
  • Durable material: High-density diamond particle coating is used, the cutting edge is sharp and durable, and can quickly penetrate hard materials such as concrete, tiles, marble, etc.
  • M10 thread: 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.
  • Multi-functional application: It integrates the functions of drilling, hole expansion, chamfering, and polishing existing holes. It is widely used in various materials, including concrete, tiles, marble, granite, quartzite, and microcrystalline stone.
  • Efficient hole opening: 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
ASIN B0F32L9N2T
Item Weight 1.57 pounds
Part Number 20250331155228
Manufacturer circulads
Package Dimensions 7.17 x 4.53 x 2.4 inches
Included Components Diamond Step Drill Bit

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4.7 out of 5
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52 ratings | 21 reviews
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