Buying your first circular saw can feel like stepping into a foreign language:

  • “18V brushless?”
  • “Riving knife?”
  • “165mm or 190mm blade?”

No worries — we’ll break it down step by step, with real-world examples from Bosch, DeWalt, Makita, and Ryobi, plus guidance on which blades to use for specific materials.

Understanding the Basics

Corded vs Cordless

Corded saws plug directly into power. They never run out of juice, making them ideal for heavy-duty tasks like thick timber, laminates, or masonry cutting.

Cordless saws run on rechargeable batteries (18V or higher). Modern lithium-ion batteries deliver near corded-level power, with the huge advantage of mobility.

Tip: For site-based work, you’ll often want at least one cordless saw. For workshops or continuous cutting, a corded saw is usually the practical choice.

Brushless vs Brushed Motors

  • Brushed motors: Older, simpler, cheaper, but wear out faster.
  • Brushless motors: Modern, more efficient, generate less heat, and last longer.

Pro tip: Most Bosch, DeWalt, and Makita professional models are brushless. Ryobi often uses brushed motors in entry-level saws, but also offers brushless in their ONE+ advanced models.

Choosing the Right Saw for Your Needs

1️⃣ Cutting Depth & Blade Size

Blade size determines the maximum cutting depth:

  • Most cordless saws: 165mm blade → cuts 18–30mm timber sheets easily
  • Some corded/pro models: 190–235mm → thicker timber or heavy boards

Blade selection matters:

MaterialBlade TypeExample Saw
SoftwoodStandard wood bladeRyobi ONE+ 18V, Makita 18V, Bosch 18V
HardwoodFine-tooth crosscutBosch GKS 18V-57, DeWalt DCS391, Makita 18V brushless
Plywood / MDFHigh tooth countDeWalt DCS391, Makita 18V, Bosch 18V
Aluminum / non-ferrous metalsCarbide-tippedBosch GKS 18V, DeWalt DCS391, Makita 18V
Concrete / masonryDiamond bladeDeWalt DWE575 (corded), Bosch diamond masonry, Makita corded masonry

Pro Tip: Professionals often mark blades by material type to avoid grabbing the wrong blade on-site. This saves time and prevents mistakes.

2️⃣ Corded Options (Heavy-Duty)

Ideal for: Workshops, thick timber, continuous sawing, high-load tasks.

Brands / Models:

  • Bosch Professional GKS 190 — precise, smooth, robust
  • DeWalt DWE575 — 1350W, suitable for metal & wood
  • Makita 5007MG — 1,510W, high-performance corded option

Pro Tip: Use a carbide-tipped blade for tough hardwoods — it lasts longer and cuts cleaner under heavy loads.

3️⃣ Cordless Options (Mobility & Convenience)

Ideal for: Site work, moving between floors, quick jobs, medium timber cutting.

Brands / Models:

  • DeWalt DCS391 — brushless, professional-grade, long runtime
  • Bosch GKS 18V-57 — lightweight, precise, brushless
  • Makita DHS680 — 18V brushless, high torque, compact
  • Ryobi ONE+ 18V — mid-range, versatile, good for light-to-medium trade work

Battery tip: Keep at least one spare battery charged — swap while you work to avoid downtime.

Pro Tip: For cordless saws, plan battery swaps ahead of long jobs to maintain continuous cutting without downtime.

4️⃣ Extra Features That Make a Difference

  • Riving knife: Reduces kickback; essential for plunge cuts
  • Laser / LED guide: Helps make straighter cuts
  • Bevel capacity: Adjustable base for angled cuts (0–45°)
  • Electronic brake: Stops the blade quickly for safety
  • Ergonomic handles & balanced weight: Reduces fatigue on long jobs

Pro Tip: Pre-set your bevel stops for repetitive angled cuts to save time and ensure consistent accuracy.

5️⃣ Where Each Saw Works Best

TaskBest OptionBrand / ExampleBlade
Heavy timber in workshopCordedBosch GKS 190, DeWalt DWE575, Makita 5007MGHardwood
Site mobility, moderate timberCordless brushlessDeWalt DCS391, Bosch GKS 18V-57, Makita DHS680Wood / multi-material
Light DIY, plywood, MDFCordless mid-rangeRyobi ONE+ 18VFine-tooth wood
Aluminium / metal sheetsCorded or high-torque cordlessBosch, DeWalt, MakitaCarbide-tipped
Concrete / masonryCordedDeWalt DWE575, Bosch diamond, Makita corded masonryDiamond masonry

Pro Tip: Match your saw and blade combination to the specific material — this prevents tool damage, kickback, and wasted time.

Final Thoughts

Choosing a circular saw isn’t about specifications alone — it’s about matching tools to real-world tasks.

  • Workshop-heavy tasks → corded saw + correct blades
  • Site-based or mobile work → cordless brushless + spare batteries
  • Variety of materials → saws compatible with different blades and strong motor protection

Pro Tip: Even professionals benefit from keeping a small kit of spare blades and batteries on-site — it keeps work flowing and avoids last-minute stoppages.

At Toolit, we stock professional Bosch, DeWalt, Makita, and Ryobi saws, along with blades for every material, so you can cut safely, efficiently, and confidently.

👉 Explore circular saws, blades, and accessories at toolit.co.ke

 

Special offers