https://mydiamondcoredrill.com Tue, 26 May 2026 06:41:44 +0000 en-US hourly 1 https://wordpress.org/?v=4.1.1 https://mydiamondcoredrill.com/220-x-400-mm-dry-and-diamond-core-drill-bit-b1m1/ https://mydiamondcoredrill.com/220-x-400-mm-dry-and-diamond-core-drill-bit-b1m1/#comments Sat, 20 Jul 2024 00:52:15 +0000 https://mydiamondcoredrill.com/220-x-400-mm-dry-and-diamond-core-drill-bit-b1m1/






Our 220×400 mm drill bit is perfect for use with electric core drills for drilling on granite, hard stone, concrete, reinforced concrete, and other hard surfaces. Its construction will ensure smooth operation of the drills. Also provide bits of other sizes to meet different drilling needs. Size: 220 mm X 400 mm. Segment Height: 7 mm. Threaded connection: 1 1/4.

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