A Two-Cutter Range for Professional Concrete Drilling
For professional concrete drilling, head geometry and dust removal need to work with the available hammer energy. DREPS offers its two-cutter hammer drill bit in both SDS-Plus and SDS-Max, combining a centring feature with carbide cutting edges and a fluted steel body.
DREPS positions this design around drilling speed and stability during reinforcement contact. For a distributor building a concrete-drilling range, it provides a two-cutter option to compare with the company’s four-cutter reinforced-concrete family.
Centring Geometry and the Two Main Cutting Edges
The top view shows two main cutting edges arranged across the carbide plate, with a raised region around the centre. This geometry helps establish the starting point while the main edges engage the concrete around it. The steel head supports the carbide cutting element.
The openings behind the cutting areas connect to the spiral flutes. Head shape, carbide support and the transition into those flutes should be assessed together when comparing bits for the same hole diameter and machine.
Dust Flutes and the Complete Bit
The spiral body carries fractured concrete away from the head. The useful path begins at the flute entrances behind the carbide and continues along the working section of the bit. Consistent clearance helps the head keep working as the hole becomes deeper.
A two-cutter head is one element of the complete tool. For a sample comparison, use the same hammer, concrete, hole diameter and working depth, then observe drilling progress, dust evacuation and the condition of the cutting edges.
SDS-Plus and SDS-Max Sizes
DREPS publishes SDS-Plus Ø3–26 mm, SDS-Max Ø12–32 mm and a combined standard-length span of 110–1,000 mm. The actual diameter and length combination should be selected by the supplied article.
Specify the hole diameter and required working length first, then confirm overall length and holder. Working length is a product dimension; a fixed deduction from overall length should only be used where the selected article’s specification establishes it.
| Interface | Published two-cutter diameter range | Order requirement |
|---|---|---|
| SDS-Plus | Ø3–26 mm | Confirm article, working length and overall length |
| SDS-Max | Ø12–32 mm | Confirm article, lengths and the hammer’s permitted drilling range |
When to Choose the Four-Cutter Range
DREPS describes its four-cutter family as a professional reinforced-concrete option. Its official construction split is one-piece carbide tip up to Ø28 mm and three-piece tip from Ø30 mm. Four cutting edges and the number of carbide components are separate details of that specification.
Choose from the substrate and reinforcement exposure before comparing purchase cost. Where reinforcement contact is a regular part of the job, include the appropriate four-cutter version in the sample programme. DREPS also highlights reinforcement-contact stability for its two-cutter design; the intended application belongs to the specific product.
| DREPS range | Published configuration | Selection focus |
|---|---|---|
| Two-cutter | SDS-Plus Ø3–26 mm; SDS-Max Ø12–32 mm | Centring, drilling progress and dust transport |
| Four-cutter | SDS-Plus Ø5–32 mm; SDS-Max Ø12–52 mm | Reinforced concrete; carbide construction changes at Ø30 mm |
Build an OEM Drill Bit Range with Zhonghuan
We manufacture SDS drill bits for distributor and private-label programmes. Start with the concrete, reinforcement exposure, hammer platform and required hole sizes; then define the cutting head, carbide specification, steel body and joining route.
Send the diameter × working-length list, machine models and expected quantities. Our engineering team can recommend a configuration, arrange a sample comparison and confirm packaging, quotation and lead time.
Explore our SDS-Plus range · Explore our SDS-Max range · Discuss your OEM configuration
Frequently Asked Questions
What diameter ranges does DREPS list for its two-cutter bits?
SDS-Plus Ø3–26 mm and SDS-Max Ø12–32 mm. Confirm the available length combination against the actual article.
Does two-cutter mean two separate carbide pieces?
It describes the main cutting-edge layout. The top view shows the opposing working edges on a carbide plate; cutting-edge count and component count are separate specifications.
Are all DREPS four-cutter heads one-piece carbide?
DREPS specifies a one-piece carbide tip through Ø28 mm and a three-piece tip from Ø30 mm.
How does this differ from HERCULES?
These are fluted hammer drill bits for conventional holes. HERCULES is DREPS’s one-piece core cutter for larger cable and pipe through-openings.
Official Product Information and Further View
- DREPS two-cutter: interfaces, diameter ranges and standard lengths
- DREPS four-cutter: applications and carbide construction
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