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Hand Drill Hole Saw Set (12-Piece), Brazed Diamond Drill Bits, Specifically Designed for Drilling Holes in Marble, Tiles, and Stone

GH₵ 136

GH₵ 24845%

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Product details

【Sizes & Specifications】: This 12-piece diamond hollow drill bit set includes the following sizes: 6mm (1/4"), 8mm (5/16"), 10mm (3/8"), 12mm (1/2"), 14mm (9/16"), 16mm (5/8"), 18mm (7/10"), 20mm (7/9"), 22mm (7/8"), 25mm (1"), 30mm (1-1/5"), and 35mm (1-3/8").
【Wet & Dry Use】: Each diamond hole saw in this set has undergone a special high-temperature resistance treatment. Utilizing vacuum brazing technology and featuring built-in cooling wax, these bits effectively withstand the immense heat generated during high-speed rotation—even without the use of water as a lubricant. Naturally, you may also add water as an auxiliary coolant to further extend the service life of the hole saws.
【Brazing Process | Robust & Sharp】: Our brazed diamond hollow drill bit set is manufactured with a solid steel base featuring an integral diamond-forming structure, ensuring exceptional strength and durability. The surface is treated with a highly corrosion-resistant brazing process, while the thickened diamond coating at the tip delivers superior cutting power, enabling high-precision, smooth cuts and ensuring a stable, efficient drilling experience.
【Wide Applications】: These diamond hollow drill bits are ideal for effortless dry drilling through hard tiles, ceramics, bathroom tiles, granite, marble, masonry, concrete, glass, and hard plastics. The spiral chip-removal grooves at the tip of each bit feature a specialized design that facilitates the smooth and efficient discharge of cutting debris.
【Convenient Storage】: This set of brazed diamond hollow drill bits comes with a portable carrying case. The interior features a custom-molded EVA insert designed to securely hold the drill bits in place, effectively preventing damage caused by shifting or shaking during transport.

Specifications

Key Features

Suitable for drilling into granite, marble, masonry, concrete, tiles/ceramics, and various types of stone.
Manufactured using high-quality materials to maximize tool lifespan.
These brazed diamond drill bits offer exceptional working efficiency, featuring faster cutting speeds and superior durability.
Features an internal cooling function; each bit contains a built-in wax core that automatically absorbs heat during the drilling process.
Produces clean, smooth holes with no chipping or edge breakage; the bits remain stable during drilling—resisting wobbling and fragmentation—to ensure a smooth, steady operation with minimal cutting resistance.