Which Battery Size Should You Buy?

Choosing the right Worcraft 20V cordless battery size

Stone and tile work is hard on tools and harder on cords. Here's the core cordless kit a fab or install crew actually reaches for every day — and the smart way to buy into it without paying for batteries twice.

The core five (plus light)

1. Angle grinder — the most-used tool in the shop

Cutting sink openings, grinding down seams, blending edges — a brushless angle grinder does more stone and tile work than anything else you own. Cordless means you take it to the slab instead of running a lead across the shop. Paired with the right diamond wheel, it handles granite, quartz, and porcelain.

2. Hammer drill — anchors, holes, and everything else

A brushless hammer drill covers two jobs: hammer mode for setting anchors in concrete and stone, and standard drill/driver mode for the hundred other fasteners a day. It's the tool that never leaves the belt.

3. Paddle mixer — thinset, grout, and epoxy without the mess

Mixing by hand or with an underpowered drill wastes time and burns tools out. A dedicated cordless paddle mixer with an M14 shaft turns a full bucket of thinset or epoxy smoothly, and being cordless means no lead trailing into a wet mix.

4. Oscillating multi-tool — the detail work

Undercuts, flush cuts, scribing, and clean-up in tight corners — the oscillating multi-tool gets where a grinder can't. It's the one that saves a job when a cut has to be perfect and there's no room to swing.

5. Laser level — layout that stays put

A self-leveling green laser lays out backsplash, cabinet lines, and install references faster and straighter than a chalk line — and one person can run it.

+ Work light — see every edge

Fabrication lives and dies on seeing the surface. A cordless LED work light floods the slab so you catch every chip, scratch, and seam before the customer does.

Why cordless for stone work

The old objection was power — could a battery tool really cut and grind stone all day? With brushless motors and higher-capacity packs, the answer for daily fab and install work is yes. What you gain is a shop with no cords underfoot on wet floors, tools that move to the slab, and — on a single-battery platform — one set of packs that runs the grinder, the drill, the mixer, and the light.

The smart way to buy it

Don't buy these one bare tool at a time from a standing start — you'd have nothing to power them. Start with the Grinder + Hammer Drill Combo Kit: it puts two core tools plus batteries and a charger in your hands. Then add the mixer, multi-tool, laser, and light as bare tools that run on the packs you already own. Every one is on the One For All 20V platform, so you never re-buy batteries.

Common questions

Is a cordless grinder strong enough for granite and quartz?
For cutting sink openings and grinding seams, yes — a brushless grinder on a 4.0Ah or larger pack does the daily work. For heavy, hours-long stationary cutting, some shops still keep a corded grinder around.

What's the one tool to start with?
The grinder, closely followed by the hammer drill — which is exactly why the combo kit pairs them.

Build your fab kit

Every tool here runs on the One For All 20V battery. Start with the combo kit, then add bare tools as you grow.

Shop: Shop by Trade  ·  Combo Kits  ·  Power Tools