L H Dottie Co 73TR8 Hex Pin Insert Bit 5/16 Inch

Product Description

The L H Dottie Co 73TR8 is a 5/16-inch hex pin insert bit designed for driving tamper-resistant fasteners. This security bit fits standard power drills and impact drivers, providing the hex pin configuration required to engage tamper-resistant hex fasteners. It is sold individually and is a common tool accessory used by electricians, maintenance technicians, and general trade contractors who encounter security hardware on panels, fixtures, and equipment enclosures.

This insert bit is suited for both residential and light commercial applications where tamper-resistant fasteners are specified. It is commonly used during electrical panel installations, fixture mounting, and equipment servicing where standard hex drivers will not engage the fastener. The 5/16-inch size corresponds to a specific tamper-resistant hex fastener dimension common in trade hardware applications.

Key Features

• 5/16-inch hex pin drive for tamper-resistant fastener engagement
• Insert bit format compatible with standard power tool bit holders and impact drivers
• Sold as a single unit for targeted replacement or addition to existing bit sets
• Compact insert design for use with bit extensions and adapters

Compatibility

Designed as a standard insert bit replacement for use with 1/4-inch hex shank bit holders, impact drivers, and drill drivers that accept insert-style bits.

Installation Notes

Insert bits of this type are installed and replaced by hand with no tools required. Ensure the power tool is powered off and the driver is not in motion before changing bits. Always match the bit size to the fastener specification to avoid fastener or bit damage. This type of security hardware is commonly encountered in electrical and general construction work governed by NEC and applicable local codes.