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Diamond Core Drill Manufacturer & OEM (the "Diamond Hole Saw" for Concrete & Stone) | Zhonghuan

Diamond core drill manufacturer and OEM supplier for concrete, masonry and natural stone: segmented and turbo architectures in Ø25–250 mm, wet and dry, with private-label programs for professional hard-material coring.

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Scope note: This page covers diamond core drills — the segmented / turbo diamond bit for concrete, masonry, and natural stone, which is what most buyers mean by a "diamond hole saw" in hard material. Zhonghuan specializes in these hard-material core drills; tile, porcelain and glass use a separate thin-kerf electroplated or vacuum-brazed tool system. Start from our Diamond Core Drill Bits Manufacturer RFQ Hub.

"Diamond Hole Saw" vs Diamond Core Drill

The phrase "diamond hole saw" covers two different tools. For tile, porcelain, and glass, it means a small electroplated or vacuum-brazed bit with a thin diamond-grit rim — a tradesman's tile tool. For concrete, masonry, and stone, it means a diamond core drill: a steel tube with diamond segments (or a turbo rim) that cuts a clean cylinder in hard material. We manufacture the second one. If you need to cut holes in reinforced concrete, block, or natural stone, the diamond core drill is the tool — and it is what this page is about.

Spec

ParameterDry (handheld)Wet (rig)
Segment / rimTurbo or vacuum-brazedLaser-welded segments
SubstrateBlock, brick, light concreteReinforced concrete, stone
Thread / shankM14, SDS-Plus5/8-11, 1¼-7 UNC
DiameterØ25–162 mmØ25–250 mm
Tube42CrMo30CrMnSi seamless

Tool-to-Material Mapping

MaterialRight tool
Reinforced / high-strength concreteWet diamond core drill
Block, brick, light concreteDry diamond core drill / TCT wall hole cutter
Granite, natural stoneDiamond core drill
Tile, porcelain, glassThin-kerf electroplated tile-tool system

RFQ Checklist

  • Target substrate (reinforced concrete + rebar, block, granite)
  • Wet or dry, and rig / handheld platform
  • Diameter range and quantity per size (Ø25–250 mm)
  • Thread: SDS-Plus, 5/8-11, 1¼-7 UNC, M14
  • Packaging: laser logo, private-label sleeve, printed carton

Build Your Diamond Core Drill Range

Send target substrate, wet/dry, diameter range, and thread. We respond with a spec sheet and sample path. Our OEM program is built around concrete, masonry and stone coring.

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Ready for a Production Quote?

Send quantity, target material, and timeline to get a faster engineering response.

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Related Resources

Diamond Hole Saw vs Core Drill: What Is the Difference?
Diamond hole saws and diamond core drills look similar but cut different materials. Learn which one to use for tile, porcelain, glass, concrete, and masonry — and how to stock both lines.
Diamond Core Bits: The Complete Buyer & Spec Knowledge Center
The complete guide to structural diamond core bits — what they are, wet vs dry, soft-bond-for-hard-material selection, 1¼-7 UNC vs 5/8-11 vs ½ BSP threads, laser-welded vs sintered, reinforced-concrete coring, bit life, dressing, and how to spec an OEM order. Written for distributors and contractors sourcing professional Ø25–350mm coring bits.
One-Piece Wall Hole Cutters vs Diamond Core Drills: Which Range Fits Your Market?
A buyer-focused comparison of one-piece wall hole cutters and diamond core drills. Match substrate, trade channel, hole quality, machine type, and packaging strategy before building your import range.