We've been shippng these for years to actual job sites, and what really sets them apart is the YG8C carbide tip brazed at 1120°C — it holds up way better than cheaper bits when you're hitting rebar or granite inclusions that'd trash most bits in seconds.

Actually, the self-centering flat tip is what most buyers appreciate first because of that it avoids walking on tiles or smooth concrete, but the real durability comes form the 40Cr steel body milled with those S2 or S4 flutes that clear dust fast; diameter range is 4-30mm and lengths from 110mm up to 1000mm (the long ones are basically for anchor drilling in thick walls).

One thing nobody asks about but matters: the sand-blasted suface treatment reduces jamming in wet concrete — it's not just cosmetic, it's practical for daily use.

Most users pair these with Bosch or Hilti SDS Plus hammers, but they fit Makita, AEG, and Black & Decker too since it's same shank standerd; just keep in mind the flat tip isn't ideal for drilling through steel or rebar alone despite handling occasional hits.

Stock typically runs 50 units per size or so, and we usually have 6-10mm diameters ready to ship within a week, but the 1000mm option (roughly 39 inches) needs a 20-day lead time or so.

Basically, if you're drilling hundreds of holes daily in masonry or stone, these are better than cheap bits by a mile — but for delicate ceramic tiles you'd want a spear tip instead.
Our MOQ for the SDS-01 is typically 500 pieces per size, but we can negotiate for mixed sizes on first orders. Just reach out to confirm.
Yes, we can provide material certificates for the YG8C carbide and the 40Cr steel, plus a DIN 8035 compliance report. Just let us know what you need.
We can do custom lengths, but the tooling setup adds cost and a longer lead time—usually 2-3 weeks extra. Minimum order for custom sizes is 1000 pieces.
Standard orders for S2 or S4 flutes ship in 15-20 days after payment. If you need rush delivery, we can expedite for a 10% surcharge.
They come in individual PVC tubes, then packed in a carton—usually 10 or 20 per box depending on diameter. Bulk packing is available if you prefer.