Hitachi

Hitachi 318312 Side Handle for G10SR/2 & G12SR/2/3 Grinders

Name: Hitachi 318312 Side Handle for G10SR/2 & G12SR/2/3 Grinders
Brand: Hitachi
SKU: 318312

★★★★★4.9 (11 reviews)

The Hitachi 318312 side handle adds secure grip and control to your G10SR/2 and G12SR/2/3 grinders.

$12.94*$14.65Save 11%

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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Hitachi 318312 side handle is a genuine OEM accessory engineered for use with Hitachi (now Metabo HPT) G10SR/2, G12SR/2, and G12SR/3 angle grinders. Its primary purpose is to give the operator a secure secondary grip point, improving control and reducing fatigue during extended grinding, cutting, or polishing tasks. As a factory-specified part, it threads directly into the mounting points on compatible grinder bodies without modification or adapters.

Hitachi states that the handle has been rigorously tested for both performance and durability, matching the quality standards of the original equipment. For owners of compatible grinders who have lost or damaged their original side handle, this replacement restores full two-handed operation and the added stability that comes with it. Note that Hitachi Power Tools has since rebranded to Metabo HPT, but the part number and compatibility remain unchanged.

Key Features

Hitachi Power Tools has renamed to Metabo HPT. Same great tools, with only a new name.

Designed to the highest standards

Rigorously tested for both performance and durability

Specifications

Brand

Hitachi (now Metabo HPT)

Model / Part Number

318312

Type

Side Handle

Compatibility

G10SR/2, G12SR/2, G12SR/3

Design Standard

OEM — designed to highest standards

Testing

Rigorously tested for performance and durability

Pros & Cons

👍 Pros

Genuine OEM part ensures correct fit for G10SR/2 and G12SR/2/3 grinders
Provides additional leverage and control during grinding operations
Rigorously tested for performance and durability by the manufacturer
Simple threaded installation requires no additional tools

👎 Cons

Only compatible with specific Hitachi G10SR/2 and G12SR/2/3 models
Basic handle design with no vibration-dampening or ergonomic grip features
Does not include any mounting hardware beyond the handle itself
Limited product information available regarding exact dimensions and materials

Frequently Asked Questions

Which grinder models is the Hitachi 318312 side handle compatible with?

It is specifically designed for the Hitachi (now Metabo HPT) G10SR/2, G12SR/2, and G12SR/3 series grinders. It may not fit other models, so verify your grinder model number before purchasing.

Is Hitachi the same brand as Metabo HPT?

Yes. Hitachi Power Tools rebranded to Metabo HPT. This is the same part with the same fit and quality—only the brand name has changed.

Does this handle thread onto the grinder, and can it be installed on either side?

The handle is designed to screw into the threaded mounting points on compatible grinders. Most grinders in the G10SR/G12SR series allow the handle to be installed on either side for left- or right-handed use.

Is this an OEM replacement part?

Yes. The 318312 is a genuine Hitachi (Metabo HPT) part number, designed and tested to match the original equipment specifications.