VERIFIED · 2026 canonical · www.jaspecs.com

Ryobi ONE+ HP 18V Brushless 4-1/2 in. Angle Grinder Kit (4.0 Ah)

Model number
PBLAG01K1

The Ryobi PBLAG01K1 bundles the PBLAG01B brushless 4-1/2 in. angle grinder with a 4.0 Ah HIGH PERFORMANCE battery and charger, making it a complete out-of-box solution for homeowners and DIYers new to the ONE+ platform. The brushless motor delivers up to 9,200 RPM for grinding, cutting, and surface prep tasks, while the included grinding and cutting wheels let you get started immediately. The 4.0 Ah HP battery provides extended runtime compared to entry-level 1.5 Ah packs, reducing interruptions during longer jobs like driveway crack prep or metal fabrication work.

identifiers stable · addressable
Model no.
PBLAG01K1
Brand
Ryobi
Category
Angle Grinder
Canonical URL
/ryobi/angle-grinder/pblag01k1-ryobi-18v-one-hp-brushless-4-12-in-angle-grinder-kit/
Official page ryobitools.com →
14 spec rows · each row is anchorable

§ Specifications

#specifications
Voltage (V)
18
Platform
ONE+ HP
Motor Type
Brushless
Disc Diameter In
4.5
No Load Rpm
9,200
Arbor
5/8 in. x 11 UNC
Spindle Lock
Yes
Tool Only
No
Batteries Included
1
Battery Ah
4
Battery Included
Yes
Charger Included
Yes
Weight (lbs)
5.2
Warranty
3-year limited

§ What's Included

01 (1) RYOBI ONE+ HP 18V Brushless 4-1/2 in. Angle Grinder (PBLAG01B)
02 (1) 18V 4.0 Ah HIGH PERFORMANCE Battery
03 (1) 18V Charger
04 (1) Comfort Grip Auxiliary Handle
05 (1) Grinding Wheel
06 (1) Cutting Wheel
07 (1) Type 27 Grinding Guard
08 (1) Type 1 Cutting Guard
09 (1) FIXTEC Nut
10 (1) Spanner Wrench

§ Warranty

3-year limited

§ FAQ

What battery comes with the PBLAG01K1?

The kit includes one 18V 4.0 Ah HIGH PERFORMANCE lithium-ion battery and an 18V charger. The 4.0 Ah HP pack delivers more runtime and better sustained power under load than the standard 2.0 Ah batteries bundled with many entry-level kits.

What size discs does the PBLAG01K1 accept?

The grinder accepts 4-1/2 in. discs with a 5/8 in. x 11 UNC arbor thread. This is the industry-standard angle grinder arbor, so wheels from Diablo, Dewalt, Makita, and other major abrasives brands are compatible.

Is there a tool-only version of this grinder?

Yes — the PBLAG01B is the bare tool version of the same grinder without a battery or charger. It is priced lower and is ideal for buyers who already own ONE+ 18V batteries.

What tasks is this grinder best suited for?

The PBLAG01K1 handles grinding (rust removal, weld cleanup, concrete scarifying), cutting (tile, rebar, thin metal), and surface preparation. The included Type 27 guard is set up for grinding wheels and the Type 1 guard for cutting wheels — swap them based on the task.

Can I use this battery in my other Ryobi tools?

Yes. The included 4.0 Ah HP battery is compatible with all 300+ tools in the Ryobi ONE+ 18V platform. It works in drills, saws, impact drivers, and any other tool that accepts an 18V ONE+ battery pack.