OEM Diamond Hole Saw Suppliers & Exporter

Vacuum brazed hole saws use an active nickel-chromium filler under intense heat to chemically fuse diamond particles, resulting in high diamond exposure that excels at dry or wet drilling through hard porcelain and ceramics. Electroplated hole saws feature a mechanical nickel layer that creates a smooth cut on delicate materials like optical glass, but offers shorter overall tool life. Sintered hole saws blend metal powders and diamonds throughout the entire segment depth, making them ideal for heavy masonry, granite, and cured reinforced concrete.

Bond hardness should always oppose aggregate hardness: soft bonds for hard, dense aggregates, and hard bonds for soft, abrasive materials. Drilling dense river gravel or hard granite requires a soft bronze-based matrix that wears away steadily to expose fresh diamond edges. Conversely, drilling abrasive materials like sandstone or green concrete requires a hard cobalt-iron matrix that resists premature segment wear.

We provide comprehensive turnkey OEM manufacturing. This includes custom shank designs (Hex, Round, SDS, M14, 5/8"-11), specialized barrel lengths and slotting, custom electrostatic paint or electroplated finishes, high-resolution laser marking of your brand and safety logos, and full packaging services ranging from branded blister cards to blow-molded aluminum case sets.

Every batch undergoes automated segment shear testing under high pressure alongside dynamic balancing tests. For laser welded core drills, we inspect the weld penetration zone to confirm a deep, crack-free metallurgical bond between the segment and the steel core, far exceeding the tensile stress thresholds outlined in EN 13236 safety standards.

Standard prototype evaluation samples ship within 5 to 7 working days. For full-scale production runs, delivery is typically 25 to 35 days, depending on custom packaging and shank configurations. Our standard OEM production MOQ starts at 100 units per diameter, and we offer consolidated mixed-SKU trial containers for qualified long-term partners.