ZNXIMER Diamond Hole Saw Drill Bits - 2pcs 1-9/16" Diamond Drill bits Accurate Drilling for Tile, Ceramic, Marble, Granite, Stone, Glass Bottles 40mm

ZNXIMER Diamond Hole Saw Drill Bits - 2pcs 1-9/16" Diamond Drill bits Accurate Drilling for Tile, Ceramic, Marble, Granite, Stone, Glass Bottles 40mm

2-in-1 Professional Tile Drill Bit Set: (Precise Positioning + Cooling and Smooth) Includes 1 pc 1-9/16" Diamond Hole Saw Guide Bits (for ultra-accurate pilot holes) and 1 pc 1-9/16" Diamond Sponge Spring Hole Saw Bits (for efficient and perfect drilling). Easily achieve precise, crack-free, smooth-edged holes in hard stone surfaces. Saves time, reduces tool wear, and delivers fast, cool, chip-free holes—perfect for professional contractors and DIY projects. Diamond Tile Hole Saw Guided Drill Bits: (Non-Slip Start for Accurate Positioning) The diamond pilot hole saw drill bit features center-guided drilling to hold the drill point in place, preventing slippage on glossy tiles, curved surfaces, glass bottles, or ceramics. Diamond Tile Hole Saw Sponge Spring Bits: (Coolant System for Crack-Free, Smooth Edges) The sponge spring design automatically releases water during drilling, reducing heat and dust to create crack-free, smooth-edge holes in tile, marble, and granite countertops. This prevents chipping and extends the drill bit’s lifespan. Universal Compatibility with Tough Materials： Effortlessly drill holes in tile, ceramic, granite, marble, glass bottles, porcelain, and granite countertops. Ideal for tile tools. Instructions for Use： Step 1: Use the Diamond Hole Saw Pilot Bits to mark and create an accurate pilot hole. Step 2: Switch to the Diamond Sponge Spring Drill Bits. Wet the sponge, then gently rock the bit within the pre-marked hole. The combined cooling and debris removal ​ensures a flawless, smooth-edged hole with minimal effort. 2-in-1 Professional Tile Drill Bit Set: (Precise Positioning + Cooling and Smooth) Includes 1 pc 1-9/16" Diamond Hole Saw Guide Bits (for ultra-accurate pilot holes) and 1 pc 1-9/16" Diamond Sponge Spring Hole Saw Bits (for efficient and perfect drilling). Easily achieve precise, crack-free, smooth-edged holes in hard stone surfaces. Saves time, reduces tool wear, and delivers fast, cool, chip-free holes—perfect for professional contractors and DIY projects. Diamond Tile Hole Saw Guided Drill Bits: (Non-Slip Start for Accurate Positioning) The diamond pilot hole saw drill bit features center-guided drilling to hold the drill point in place, preventing slippage on glossy tiles, curved surfaces, glass bottles, or ceramics. Diamond Tile Hole Saw Sponge Spring Bits: (Coolant System for Crack-Free, Smooth Edges) The sponge spring design automatically releases water during drilling, reducing heat and dust to create crack-free, smooth-edge holes in tile, marble, and granite countertops. This prevents chipping and extends the drill bit’s lifespan. Universal Compatibility with Tough Materials： Effortlessly drill holes in tile, ceramic, granite, marble, glass bottles, porcelain, and granite countertops. Ideal for tile tools. Instructions for Use： Step 1: Use the Diamond Hole Saw Pilot Bits to mark and create an accurate pilot hole. Step 2: Switch to the Diamond Sponge Spring Drill Bits. Wet the sponge, then gently rock the bit within the pre-marked hole. The combined cooling and debris removal ​ensures a flawless, smooth-edged hole with minimal effort.