Core Drill Bits & Hole Saws
Electroplated Diamond Core Drill Bits (6–150 mm)
From small tile holes to 150 mm ventilation ducts — hex, round and reduced shanks for drill, driver and angle-grinder setups.
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Core Drill Bits & Hole Saws
Electroplated Diamond Core Drill Bits (6–150 mm)
OEM / ODM available — custom sizes and grit ranges, laser logo and private-label packaging. Manufactured in-house by D-GINERA under ISO9001 quality control.
Product Parameters
Standard model range shown below — custom sizes, grits and private-label packaging are available on request.
| Model | Product | Hole Diameter | Working Depth | Grit | Shank & Applications |
|---|---|---|---|---|---|
| DGD-006-010 | Small Tile & Glass Core Bit | 6 / 8 / 10 mm | 30 mm | 150# | 6.35 mm hex or 6 mm round shank: elongated side slots — tile and glass wall-mount fixtures |
| DGD-012-020 | Plumbing Core Bit | 12 / 14 / 16 / 18 / 20 mm | 35 mm | 150# | 8 mm stepped shank: hot/cold pipe wall holes, bathroom stone-counter drilling |
| DGD-022-035 | Anti-Slip Triple-Flute Core Bit | 22 / 25 / 28 / 30 / 32 / 35 mm | 35 mm | 150# | 10 mm reduced triple-flute shank: sink faucet and soap-dispenser holes, reinforced segment |
| DGD-038-065 | Mid-Size Wall Core Bit | 38 / 45 / 50 / 55 / 60 / 65 mm | 40 mm | 120#–150# | 10 mm shank: drain-pipe and floor-drain holes, thin-wall barrel for low cutting resistance |
| DGD-070-150 | Large Ventilation Core Bit | 70 / 80 / 100 / 120 / 150 mm | 45–50 mm | 100#–150# | 10/12 mm reinforced shank: AC wall-pass holes, range-hood large ducts |
| DGD-SET-15P | 15-PC Core Bit Set | 6–50 mm (15 sizes) | 30–35 mm | 150# | Universal round shank, carton or aluminum case — renovation & plumbing bestseller |
| DGD-CORE-CUSTOM | Custom Deep-Hole Core Bits | Up to 200 mm | Up to 100 mm | 60#–200# | M14 / 5/8-11 grinder thread, drilling wax for dry drilling, laser scale, private label |
Engineering Custom Direct Line
Non-standard sizes, custom patterns, laser logo & private-label packaging — send your drawings, get a quote within 24 hours.
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