Dry Diamond Core Bit
Dry core bit with slotted barrel for drilling without water on construction sites — fast drilling in brick, block and light concrete with an angle grinder or hand drill. Slots improve cooling and dust removal.
| Diameter | 38 / 52 / 68 / 82 / 107 / 162 mm |
|---|---|
| Length | 150 / 300 mm |
| Connection | M14 / 5/8"-11 / hex |
| Segment | Slotted crown |
| Application | Brick, block, light concrete, tile |
| Cooling | Dry (intermittent) |
| Packaging | Poly bag / tube, color box |
| MOQ | 50 pcs per size |
About the Dry Diamond Core Bit
A dry core bit works because of its slots: they let air through the barrel and throw dust out, so the crown cools without a water feed. That makes it the practical choice on refurbishments where water would damage finishes or where the site simply has no supply.
Typical applications
- Brick and block walls — Service holes and vents where water would stain or damage the wall.
- Light concrete and screed — Small penetrations in non-structural concrete.
- Tile and finished surfaces — Drilling through tiled walls with a dust shroud instead of slurry.
How to choose the right specification
- Where dry stops working — Reinforced concrete and hard dense stone — use the wet bit there, the crown will not survive dry.
- Barrel length — 150 mm for standard walls, 300 mm for cavity and double-skin walls.
- Dust extraction — A shroud and vacuum are effectively mandatory; silica dust is the main hazard with this tool.
Supply, packing and OEM
Poly bag or tube, 50 pcs per size per size. Slots are milled before the crown is welded, so the open area is consistent batch to batch. Colour box with your artwork on request.
Standard packing is poly bag / tube, color box, minimum order 50 pcs per size per size, with mixed sizes accepted on a first order. Bulk orders typically ship within 25–40 days after deposit, FOB Shanghai or Ningbo — about 2.5 hours from our workshop in Danyang.
Most of this item ships to Canada, Europe, Australia, Japan, the Middle East and South America. Tell us the destination market and we match the sizes, thread standard, marking and packing language it uses — metric for Europe, Japan and South America, imperial where the trade still buys in inches, and carton copy in the language your customers read — then quote FOB, CIF or DDP against your order size.
Related products: wet core drill bit, stone wet core bit.
Further reading: how to choose a diamond core bit — size, crown and thread · laser welded vs brazed diamond blades — what actually differs
More from Diamond Drill Bits
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