ETRH2-28 850W Rotary Hammer: Maximum 28mm SDS-Plus Power

When the drawing calls for M16 anchors, or a pipe sleeve needs a 28mm through-hole, an 800W machine works too hard. The ETRH2-28 is the top of our corded range - 850W and 3.2J of SDS-Plus impact, built to keep cutting through dense reinforced concrete that smaller hammers bounce off.

It is also the honest ceiling of the SDS-Plus platform: 28mm is the largest hole a standard SDS-Plus rotary hammer will drill. Beyond that you leave SDS-Plus for spline or SDS-Max - so the ETRH2-28 is the most power you can put behind a universal SDS-Plus bit fleet. Made in Taizhou, OEM/ODM available.

Key Features & Benefits

• 850W / 3.2J combination — The strongest corded rotary hammer we make - tuned for dense concrete, M16 anchors, and high-volume drilling days.

• 28mm SDS-Plus capacity — Drills 6-28mm with universal SDS-Plus bits; the 28mm ceiling is the practical maximum for the SDS-Plus standard.

• 3-mode operation — Drill, hammer drill, and chisel modes for anchors, light demolition, and chase work.

• Overload clutch — Protects the drivetrain and your wrist when the bit binds in rebar - important at this power level.

• Forward / reverse — Bit extraction from deep holes and control when chiselling.

• Robust die-cast housing — Built for daily site use, with a vibration-damped auxiliary handle.

Full Specifications

Where the ETRH2-28 Earns Its Keep

• M12-M16 anchor installation — Structural anchors in columns, slabs, and foundations - the defining job for a 28mm Rotary Hammer with 3.2J.

• Pipe & conduit through-holes — Drilling 20-28mm sleeves and pass-throughs for plumbing and cable where smaller machines stall.

• Dense reinforced concrete — Where the aggregate is hard and the rebar is close, 900W keeps penetration speed up and operator effort down.

• High-volume fixing days — Racking, handrails, and facade fixing in batches - the extra impact energy reduces holes drilled and time per hole.

• Chisel & light demolition — Hammer-only mode for breaking mortar beds and removing fixings with SDS-Plus chisels.

ETRH2-28 vs Other ETpower Models

28mm vs 26mm: Where the Line Is Drawn

Both are SDS-Plus machines, so bits and spare parts are interchangeable. Choose the 26mm ETRH2-26 when most work is M8-M12 anchors; choose the 28mm ETRH2-28 when M16 anchors, 28mm sleeves, or dense reinforced concrete appear regularly. If the drawing keeps growing past 28mm, that is when you step out of SDS-Plus entirely - and we can talk about spline-drive breakers separately.

900W Rotary Hammer vs Demolition Breaker

The ETRH2-28 is not a breaker. It drills holes and does light chiselling; a breaker like our SDS-Max line is for floors and heavy concrete removal. If your job is drilling, this is the right class.

ETRH2-28 FAQ

Q1: What is the biggest hole a 28mm rotary hammer can drill?

28mm in concrete with a solid SDS-Plus bit - the practical maximum for the SDS-Plus standard. Thin-wall core bits can open larger openings for pipe and cable.

Q2: Is 28mm worth the extra weight over 26mm?

If you regularly hit M16 anchors or dense concrete, yes - 3.2J drills noticeably faster and the machine works less hard. For M8-M12 work, the 26mm class is enough and lighter.

Q3: Can the ETRH2-28 use 26mm SDS-Plus bits?

Yes - every SDS-Plus bit from 6mm to 28mm fits. The 28mm rating is a ceiling, not a minimum.

Q4: Does it chisel?

Yes, with three modes including chisel-only. It is strong for light breaking and chase work, though for sustained floor breaking a dedicated breaker is the right tool.

Q5: What is the difference between SDS-Plus and SDS-Max?

SDS-Plus is a 10mm shank for up to 28mm holes; SDS-Max is a thicker 18mm shank for 28-52mm and breakers. The ETRH2-28 uses SDS-Plus, keeping bit costs low and bits universal.

Q6: What voltage options are available?

220-240V standard; 110V versions can be produced for North American markets. OEM customers specify voltage and plug at order.

Q7: How does it compare with a cordless 28mm option?

Cordless 28mm machines exist but at much higher cost per hole. For powered sites, this corded 850W model remains the value choice - see our cordless rotary hammers for the off-grid alternative.

Q8: Can I buy the ETRH2-28 under my own brand?

Yes - OEM/ODM with logo, colour, packaging, and market-specific voltage. It is one of our strongest export models; request samples and lead times.

Buy Factory Direct

The ETRH2-28 is the flagship of our corded Rotary Hammers range. For OEM pricing, sample orders, or a full product line-up with the 26mm subcategory and 28mm subcategory, contact our export team.