Rack-A-Tiers 70140G #1 Square Bit 4-Inch Robertson® Insert Bit

Rack-A-Tiers 70140G #1 Square Bit 4-Inch Robertson® Insert Bit

The Rack-A-Tiers 70140G is a #1 square Robertson® insert bit measuring 4-inch in length, built for electricians and installers who need a reliable driver bit for fast, repeatable fastening on the job. Sized to fit standard #1 square-recess (Robertson®) fasteners commonly found in electrical, low-voltage, and general construction applications, this 4-inch bit slips into standard 1/4-inch hex bit holders and quick-change drivers for fast swap-out during panel work, box installs, and rough-in tasks. This insert bit is offered in two color options – Green and Red – so crews can color-code bit sets for quick identification in the field; both colors share the same #1 square Robertson® tip, 4-inch length, and insert-bit format. Rack-A-Tiers builds its tool and accessory line for professional electricians, and this insert bit is sized and profiled to match that everyday use case.

Key Features

• Bit Size: #1 square (Robertson®) tip for a secure, slip-resistant engagement with #1 square-recess fasteners.
• Length: 4-Inch overall length for reach into recessed screws and tight mounting locations.
• Robertson® Profile: Square-drive geometry helps reduce cam-out compared to slotted or Phillips profiles, supporting consistent torque transfer.
• Insert Bit Format: Sized to fit standard 1/4-inch hex bit holders and quick-change drivers commonly used by electricians in the field.
• Color Options: Available in Green or Red for easy visual sorting and bit-set organization on the truck or in the pouch.
• Job-Ready Durability: Built by Rack-A-Tiers for the demands of daily electrical and construction fastening tasks.

Technical Specifications

• Bit Type: #1 Square (Robertson®)
• Length: 4-Inch
• Color Options: Green, Red
• Brand: Rack-A-Tiers

Typical Applications

• Electrical Panel and Box Installation
• Device and Wallplate Fastening
• General Electrical Rough-In and Trim-Out Work
• Low-Voltage and Commercial Construction Fastening
• Driver and Bit Holder Kits for Field Technicians

Why Rack-A-Tiers?

Rack-A-Tiers designs tools and accessories specifically with the working electrician in mind, and the 70140G #1 square Robertson® bit continues that focus with a driver bit sized and profiled for dependable, everyday fastening performance, available in Green or Red so crews can keep bit sets organized. Choosing a purpose-built insert bit like this one helps keep panel, box, and device installs moving efficiently without stripped screws or slipped bits. Shop Rack-A-Tiers tools and accessories at ZenSupply for more field-ready gear built for professional electrical work.