Klein Tools 935CSEL Combination Square – Magnetic, Double-Sided Stainless Steel Ruler for Electricians & Carpenters

Precision, Durability, and Practicality in One Tool

The Klein Tools 935CSEL Combination Square merges reliable measurement with magnetic ease, making it a versatile companion for electrical and carpentry work. Built around a 12-inch, rustproof stainless steel ruler, it delivers crisp, long-lasting markings on both sides. The body’s magnetic hold simplifies setup and reduces the need for constant readjustment, so you can focus on layout and marking tasks with confidence.

Designed for real-world use, this ruler combines quick adjustments, durable construction, and handy templates into a single tool. The result is a dependable companion for conduit layout, angle setting, and layout work across various job sites. Klein Tools has a long history of crafting professional-grade hand tools, and the 935CSEL reflects that commitment to quality, precision, and practical design.

What makes it stand out

• Magnetic quick adjust: Rare-Earth magnets allow easy stance changes while keeping the ruler aligned with the work surface.
• Durable aluminum body: Lightweight, tough construction with precise 45 and 90-degree edges for accurate angle setting on miter or table saws.
• Integrated conduit layout template: Quickly locate center knockouts on EMT, streamlining electrical box layouts.
• Double-sided ruler: One side presents 1/8-inch and 1/16-inch increments; the opposite side features an electrical panel schedule and the conduit template.
• Deeply etched markings: Rustproof engravings resist wear, ensuring readable measurements over time.
• High-visibility bubble vial: A large window with reinforced housing makes level and plumb readings quick to grasp.
• Integrated stainless scriber: Mark surfaces with pinpoint accuracy using the included scriber.

Real-world uses you might consider

• Conduit layouts on electrical boxes, using the built-in template to find center knockouts fast.
• Setting precise miter angles on woodworking projects or cabinet making with the 45/90-degree edges.
• Measuring and marking panels, shelves, and framing elements on DIY or professional jobs.
• On-site layout tasks where quick magnetic positioning and visible markings save time.

Whether you work in electrical installations, carpentry, or general construction, the 935CSEL aims to streamline marking and layout tasks without compromising accuracy. It’s a tool that supports a range of workflows while staying reliable under tough job-site conditions. As a heritage brand, Klein Tools continues to bring six generations of engineering know-how into each tool, aiming to help professionals perform with confidence today and tomorrow.