Professional Cut‑Off Machine – Power Meets Precision
If you’re in masonry, construction, or industrial concrete work, the STIHL TS 420 Cutquik® is more than just a name – it’s a benchmark. With a potent 66.7 cc engine, deep cutting ability, and patented filtration system, it delivers reliability day after day. Yet, it has its downsides too. This post breaks it all down – from specs and standout features to limitations and industry insights.
Key Features & Technical Specifications
| Specification | Detail |
|---|---|
| Displacement | 66.7 cc (4.07 cu in) |
| Engine Power | 4.4 bhp / ~3.2 kW |
| Engine Speed (governed) | 9,000 rpm |
| Max Spindle Speed | 5,350 rpm |
| Max Wheel Size | 350 mm / 14″ |
| Max Cutting Depth | 125 mm / 4.9″ |
| Arbor Size | 20 mm / 0.787″ |
| Weight (dry) | ~9.6 kg / 21.2 lb |
| Fuel Tank Capacity | 710 cc / 24 oz |
| Vibration Level (L/R handles) | ~3.9 m/s² |
| Sound Pressure Level | ~98 dB(A) |
| Sound Power Level | ~109 dB(A) |
Advanced Features & Built-In Technologies
- X² Air Filtration System removes ~80% of dust before primary filtering, allowing filter life up to a year under typical conditions.
- ElastoStart™ starter grip with built-in shock absorber reduces effort during pull-starting.
- Anti-Vibration System lowers operator fatigue with isolated handle zones.
- Semi-Automatic Belt Tensioning ensures consistent drivetrain tension and longer belt/shaft life.
- IntelliCarb™ Compensating Carburetor automatically optimizes fuel-air ratio as the filter loads, maintaining stable RPM.
Why the TS 420 is So Popular (and Where It Falls Short)
The TS 420 is often considered the standard against which all other hand-held gas-powered cut-off saws are measured, because it pairs compact design, reliability, and low maintenance features in one unit. However:
- It’s loud, with ~98 dB at the operator’s ear – meaning hearing protection is mandatory.
- It consumes more fuel and emits more exhaust.
- Cutting depth is limited to 4.9″, which may fall short for thicker concrete walls.
- Requires regular servicing of belt tensioner, filtration, and carburetor systems for optimal performance.
Pros and Cons at a Glance
| Pros | Cons |
|---|---|
| Powerful 66.7 cc engine with 4.4 bhp | Loud (~98 dB) and vibration demands PPE |
| Lightweight & well-balanced (~21 lb) | Gas engine needs fuel mixing and maintenance |
| Innovative X² filter for long runtime | Cut depth capped at 4.9″ |
| IntelliCarb & semi-auto tension extend uptime | Emissions higher than battery/electric options |
| Ergonomic top-handle & ElastoStart ease use | Diamond wheel sold separately |
| Reliable STIHL durability, low upkeep | Not suited to wood or metal cutting |
Interesting & Lesser‑Known Facts
Interesting Fact:
The TS 420’s filter system can last nearly a year under heavy masonry use – drastically reducing downtime for filter changes.
Lesser‑Known Fact:
STIHL recommends fuel with no more than 10% ethanol, as higher blends may damage engine components and void warranty status.
Who Should Consider the TS 420?
- Contractors cutting concrete, block, or masonry onsite.
- Demolition teams requiring fast, precise cuts.
- Road and utility workers needing rugged reliability.
- Masonry specialists wanting a trusted gas tool for daily use.
STIHL TS 420 Cutquik® FAQ
Final Verdict: Is the TS 420 Worth It?
For professionals who need consistent performance, reliability, and relatively deep cuts in concrete and masonry, the STIHL TS 420 Cutquik® is a solid investment. While it lacks cutting-edge electric quietness, its advanced filtration, ergonomic handling, and gas-powered power make it a go-to tool for heavy-duty day-in, day-out work. Just be prepared for proper maintenance and PPE.
Further Read
Join the Conversation
Have you used the STIHL TS 420 on your projects? Was it a dependable cutter—or a headache in maintenance? Share your experiences in the comments below, and don’t forget to share this post on social media to help other pros discover whether the TS 420 fits their needs!
