SIGNET 21877 Black Hex Lobe Bolt Remover Socket Set 7-Piece 6.3mm (1/4") Drive

SIGNET 21877 Black Hex Lobe Bolt Remover Socket Set 7-Piece 6.3mm (1/4") Drive

This is a genuine SIGNET 21877 hex lobe bolt remover socket set, engineered specifically for removing broken, rounded, seized, or damaged hex lobe bolts. The internal lobe extraction profile bites firmly into damaged fasteners as torque is applied, increasing grip instead of slipping. Designed for use with 6.3mm (1/4") drive tools, this compact 7-piece set is ideal for precision work where control and reliability are critical.

Key Features

Genuine SIGNET professional bolt remover socket set

Model number: 21877

Designed for removing damaged, rounded, or broken hex lobe bolts

7-piece set covers a practical range of bolt sizes

Compatible with 6.3mm (1/4") drive ratchets and extensions

Special internal extraction geometry increases bite as torque increases

Heat-treated steel for high strength and durability

Black oxide finish improves corrosion resistance

Compact size ideal for tight spaces and detailed work

Specifications

Brand: SIGNET

Product Type: Hex lobe bolt remover socket set

Model: 21877

Number of Pieces: 7

Drive Size: 6.3mm (1/4")

Material: Heat-treated alloy steel

Finish: Black oxide

Application: Extraction of damaged hex lobe fasteners

Condition: New

Recommended For

Automotive repair and maintenance

Motorcycle and bicycle servicing

Machinery and equipment repair

Electronics and precision assemblies using hex lobe bolts

Professional mechanics and serious DIY users

Situations where standard sockets slip or fail

Benefits

Extracts bolts that standard sockets cannot remove

Internal profile grips harder under load, reducing slippage

Saves time and prevents further fastener damage

Works with standard 1/4" drive tools—no special equipment needed

Durable construction supports repeated professional use

Essential problem-solving tool for workshops and toolboxes

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