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Maple Electric Supply offers a full range of electrical products including lighting fixtures, cables, panels, tools, and industrial automation parts. Shop online for reliable brands and fast Canada-wide delivery. Proudly serving electricians, builders, and homeowners.

## More about Klein Tools Wrenches & Sockets

Klein wrenches and sockets cover panel lugs, conduit fittings, strut hardware, and box mounting — imperial and metric, with insulated and ratcheting options. Pick by jaw style, drive size, and whether you need insulated tools for energized work (a CEC + licensed-electrician decision).

Klein Tools in Canada →
**Which Klein wrench do I want for panel lugs?**
Most panel and disconnect lugs take a hex socket (Allen) or square drive depending on the manufacturer. Klein's 3/8" insulated socket set and lug wrenches cover the common Square D, Eaton, and Siemens sizes — verify against the panel torque spec.
**Are Klein wrenches insulated for live work?**
Klein offers 1000V-insulated open-end, box-end, and socket wrenches tested to IEC 60900. Whether to use them on energized gear is the licensed electrician's call under the Canadian Electrical Code.
**Imperial or metric for Canadian electrical work?**
Mostly imperial. Canadian panels, EMT/RMC fittings, strut hardware, and most fasteners are imperial. Metric shows up on imported VFDs, European switchgear, and some industrial controls — a small metric set covers the gaps.