Ryobi P421 User Manual

OPERATOR’S MANUAL
ANGLE GRINDER
4-1/2 in., 18 V
P420
SAVE THIS MANUAL FOR FUTURE REFERENCE
Your angle grinder has been engineered and manufactured to our high standard for dependability, ease of operation, and
operator safety. When properly cared for, it will give you years of rugged, trouble-free performance.
WARNING: To reduce the risk of injury, the user must read and understand the operator’s manual before using
this product.
Thank you for your purchase.
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Ryobi P421 Specifications

General

Type	Angle Grinder
Voltage	18V
Weight	3.75 lbs
Power Source	Cordless
Wheel Diameter	4-1/2 inches
Arbor Size	5/8 in
Spindle Thread	5/8 - 11

Summary

Warranty Information

General Safety Rules

Specific Safety Rules

Product Features

Assembly Instructions

Operation Guide

Installing Grinding Wheel

Step-by-step guide to safely install a grinding wheel.

Positioning the Guard

Instructions for correctly mounting and adjusting the guard.

Operating the Grinder

Detailed steps on how to use the angle grinder effectively and safely.

Maintenance Procedures

Replacing the Guard

Instructions on how to replace the safety guard on the grinder.