A Practical SDS-Max Choice for Routine Concrete Drilling
For routine concrete and masonry holes, the useful combination is a dependable cutting head, effective dust removal and the right machine connection. Heller Speed2max brings those features together in a two-cutter SDS-Max family positioned in Heller’s Professional range.
Heller’s official product description identifies non-reinforced concrete, brick and stone as its applications. It is aimed at routine drilling where both drilling progress and drill-bit purchasing cost matter. For regular reinforcement contact, compare a multi-cutter designed for that duty, such as Trijet Ultimate.
Two Cutting Edges and a Centring Tip
Speed2max uses a robust tungsten-carbide plate with two main cutting edges. The central tip geometry helps locate the hole at the start, while the steel head supports the carbide as the hammer delivers repeated impacts.
The close-up shows why head condition matters: the cutting profile and centring area determine the initial contact. Check the carbide for chipping or uneven wear when drilling progress or hole accuracy changes. The catalogue’s carbide-plate description should be kept distinct from a full-carbide-head construction. The catalogue shows PGM marking; anchor holes should follow the specified dimensions and cleaning requirements.
Wide Helix for Dust Evacuation
Behind the head, the wide helix provides a route for fractured material to leave the bore. Heller links this flute design to fast dust transport and low vibration. The head and flute need to work together so that debris does not continually accumulate at the cutting area.
For deeper holes, select sufficient working length and a hammer suitable for the required diameter. Follow the machine’s drilling method and use the extraction setup appropriate to the job. Dust evacuation through the flute and dust collection at the work surface are complementary parts of the process.
Choose the Diameter, Working Length and Overall Length
The 2025 Heller catalogue lists Speed2max in Ø12–40 mm. Many references have 200 or 400 mm working length; it also lists a Ø12 mm version with 600 mm working length and 740 mm overall length. Length availability depends on the article.
State diameter, working length and overall length separately. Article 27762, for example, is Ø20 mm with 400 mm working length and 520 mm overall length. Article 27758 is Ø16 mm with the same 400 mm working length but 540 mm overall length. Use the exact reference when ordering.
| Article | Diameter (mm) | Working length (mm) | Overall length (mm) |
|---|---|---|---|
| 27753 | 12 | 200 | 340 |
| 27758 | 16 | 400 | 540 |
| 27762 | 20 | 400 | 520 |
| 27768 | 25 | 400 | 520 |
| 27774 | 32 | 400 | 520 |
| 27778 | 40 | 400 | 520 |
| 28234 | 12 | 600 | 740 |
Examples from the Heller 2025 catalogue, page 23, and official product table.
Speed2max or Trijet Ultimate?
Speed2max and Trijet Ultimate serve different drilling priorities within the SDS-Max platform. Speed2max uses a two-cutter carbide-plate head for ordinary concrete and masonry. Trijet Ultimate is Heller’s premium multi-cutter family for concrete and reinforcement, with head construction varying by diameter.
Choose by substrate and expected reinforcement contact before comparing head geometry or purchase cost. An SDS-Max shank identifies the machine connection; the selected product’s application specification determines its role on the job.
| Selection point | Speed2max SDS-Max | Trijet Ultimate SDS-Max |
|---|---|---|
| Head | Two main cutters on a carbide plate | Multi-cutter geometry; construction varies with diameter |
| Application focus | Non-reinforced concrete, brick and stone | Concrete and reinforcement |
| Range positioning | Professional | Professional Plus |
Read the Trijet Ultimate head and size guide
Develop an SDS-Max OEM Range with Zhonghuan
We manufacture SDS-Max drill bits and configure two-cutter and multi-cutter ranges for distributors and private-label programmes. We can agree the carbide geometry, steel body, joining route, flute and dimensional requirements around the intended application.
Send the required diameter and working depth, rotary-hammer model and expected quantity. Our engineering team can recommend a construction, arrange a sample plan and confirm packaging and quotation details.
Our SDS-Max drilling range · Discuss your application and OEM requirements
Frequently Asked Questions
Is Speed2max intended for reinforced concrete?
Heller’s product description specifies non-reinforced concrete, brick and stone. For regular reinforcement contact, select a suitable multi-cutter and follow the approved drilling plan.
What size range does the catalogue list?
The 2025 catalogue lists Ø12–40 mm. Common working lengths are 200 and 400 mm, with a listed Ø12 mm option at 600 mm working length. Confirm the actual article.
What does 20 × 400 / 520 mean?
It means 20 mm diameter, 400 mm working length and 520 mm overall length. The working length and overall length are separate dimensions.
Can I fit it to an SDS-Plus hammer?
Speed2max has an SDS-Max shank. Choose a hammer with the correct holder and a suitable diameter rating; SDS-Plus and SDS-Max are different interfaces.
Official Sources and Further Views
- Heller Speed2max SDS-Max: applications and current article table
- Heller 2025 catalogue: Speed2max, pages 22–23
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