Low price custom 5 blades masonry drill bit Description of 5 blades masonry drill bit: High Quality Carbide Tip
Long Drilling Life
Professional Welded
Heat Treatment Rod Hardness HRC40 to 45
Good Service Chrome Plated Black&White Masonry Drill Bits for Contrete / Granite / Brick / Marble YG8 Carbide Tip 45# Carbon Steel Profesional Heat Treatment Longer Drilling Life Introudction
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5 blades masonry drill bit