Ryobi PCL445B (18V ONE+ Cordless 4-1/2 in. Angle Grinder, Tool Only)

Ryobi PCL445B (18V ONE+ Cordless 4-1/2 in. Angle Grinder, Tool Only)

By Ryobi · Angle Grinders · Power Tools

  • 18 V ONE+
  • Wheel 4-1/2 in, 5/8 in arbor
  • Up to 9,000 RPM
  • 3-position auxiliary handle
  • Warranty 3 years

Lowest price seen
~$59.97 (approx.)
from $59.97 at Amazon

Prices are snapshots. Check the current price with the store.

Summary

A bare-tool cordless angle grinder for Ryobi’s 18V ONE+ battery platform. Battery and charger are sold separately, so check you already own compatible ONE+ batteries before buying.

Strengths

  • Uses the widespread 18V ONE+ battery platform, so existing Ryobi batteries fit.
  • Up to 9,000 RPM no-load speed for a cordless 4-1/2 in. grinder.
  • 3-position auxiliary handle gives left, right and top mounting options.
  • 3-year warranty matches Ryobi’s standard for this tool class.

Weaknesses

  • Battery and charger are not included, so the bare-tool price is not the full cost.
  • No independent test data could be located for this specific model as of October 2026.
  • No owner discussion was accessible, so real-world durability is unconfirmed.
  • Manufacturer and retailer pages were inaccessible during research, leaving weight, dimensions and included accessories unverified.

Verified specifications

ModelPCL445B.
Battery platformRyobi 18V ONE+ (tool only — battery and charger not included).
Wheel size4-1/2 in.
Arbor5/8 in.
No-load speedup to 9,000 RPM.
Auxiliary handle3-position.
Warranty3 years.
Full research notes and sources

What we know

The PCL445B is Ryobi’s 18V ONE+ cordless 4-1/2 in. angle grinder, sold as a bare tool. The product identity lists a 5/8 in. arbor, up to 9,000 RPM no-load speed, a 3-position auxiliary handle and a 3-year warranty. The “B” suffix in Ryobi’s naming indicates a battery-not-included variant. No independent instrumented tests from established tool-review outlets were accessible, and no owner discussion could be retrieved.

What we don’t know

Weight, dimensions and included accessories could not be verified — the manufacturer page returned 404 on all attempted URL patterns and Home Depot blocked access. Whether the guard adjusts tool-less, whether a spindle lock is present, and whether a brake is included are all standard features in this class but unconfirmed for this model. No pricing data was gathered from non-Amazon retailers.

Is it worth it?

The PCL445B makes sense if you already own 18V ONE+ batteries and need a cordless grinder for occasional use. If you don’t own the platform, the cost of batteries and charger adds significantly to the bare-tool price. Without independent test data or owner feedback, it’s hard to assess how it compares to other cordless grinders in its class.

Which model this is

This page covers the Ryobi PCL445B 18V ONE+ Cordless 4-1/2 in. Angle Grinder (Tool Only). The US Amazon listing is ASIN B0DQVRYQMJ. The corded sibling AG4531G is a different tool — it runs on 120V AC at 11,000 RPM and is not the model reviewed here.

Sources

Manufacturer:

Independent reviews:

  • None located.

Owner reports:

  • None located.

Other:

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