Britool Hallmark 10pc 3/8" Semi Deep 6 Point Socket Set 6-15mm MSHSET10

The Britool Hallmark MSHSET10 10-Piece Semi-Deep Socket Set is a professional-quality 3/8" square drive metric hand socket set designed for automotive servicing, mechanical maintenance, engineering and general workshop applications.

Featuring a practical semi-deep socket profile, the set bridges the gap between standard and full deep sockets. The additional length provides improved access to recessed fasteners and nuts positioned on protruding threads, while retaining a more compact overall profile than conventional deep sockets.

Each socket features a precision 6-point hexagon profile, providing positive engagement with compatible nuts and bolts for secure grip and effective torque transfer.

Finished in a high-polish mirror chrome, the sockets provide the professional appearance and corrosion resistance required for regular workshop use.

Covering every metric size from 6mm through to 15mm, the MSHSET10 provides an excellent compact socket selection for professional mechanics, technicians and engineers.

Key Features

• Genuine Britool Hallmark MSHSET10
• Professional 10-piece metric socket set
• 3/8" square drive
• Sizes 6mm-15mm
• Semi-deep / intermediate-depth profile
• 6-point hexagon socket design
• Additional reach compared with standard sockets
• More compact than conventional deep sockets
• High-polish mirror chrome finish
• Positive fastener engagement
• Suitable for professional hand-tool applications
• Ideal for automotive, engineering and workshop use
• Clearly marked with size and part reference
• Britool Hallmark branding
• Individual replacement sockets available

Set Contents

The set contains 10 semi-deep metric sockets:

6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm and 15mm

Quantity: 10 Sockets
Drive: 3/8" Square Drive
Profile: 6-Point / Hexagon
Depth: Semi-Deep
Size Range: 6-15mm
Finish: High-Polish Mirror Chrome
Part Reference: MSHSET10

Semi-Deep Socket Design

The main advantage of a semi-deep socket is the balance between additional reach and compact dimensions.

Standard-depth sockets can sometimes be too short when working with recessed nuts or fasteners positioned further along a threaded stud. Conversely, a full deep socket can be unnecessarily long when working in a restricted engine bay or mechanical assembly.

The semi-deep profile provides an effective middle ground, offering greater reach than a standard socket without the additional bulk of a full deep socket.

This makes the MSHSET10 particularly useful for professional automotive work where access around the fastener can be limited.

Socket Lengths

Overall socket lengths vary according to size.

• 10mm, 11mm, 12mm and 13mm: approximately 44mm long
• 14mm and 15mm: approximately 47mm long

The intermediate lengths provide useful additional reach while maintaining a compact profile for restricted-access applications.

6-Point Hexagon Profile

Each socket features a precision 6-point hexagon profile designed for positive engagement with compatible six-sided nuts and bolt heads.

The 6-point profile provides:

• Secure fastener engagement
• Effective torque transfer
• Positive grip on compatible hexagonal fasteners
• Reduced risk of fastener rounding when correctly sized
• Reliable performance during professional hand-tool applications

Always use the correct socket size and ensure full engagement with the fastener before applying torque.

Professional Automotive & Workshop Applications

The compact 6-15mm metric range covers many smaller fasteners commonly encountered during automotive servicing and mechanical repairs.

Typical applications include:

• Automotive servicing
• Engine bay repairs
• Vehicle maintenance
• Mechanical engineering
• Machinery servicing
• Professional garages
• Automotive workshops
• Assembly work
• General engineering
• Maintenance and repair
• Home garage and enthusiast use

The semi-deep profile is especially useful around engines and mechanical assemblies where a standard socket does not provide sufficient reach.

High-Polish Mirror Chrome Finish

The sockets feature a high-polish chrome mirror finish, providing a professional appearance while helping protect the surface against corrosion and regular workshop conditions.

The smooth polished finish also allows the sockets to be easily wiped clean following automotive and mechanical work.

Each socket is clearly marked with its size and individual part reference, providing quick identification within a professional toolbox.

Individual Replacement Sockets Available

Every socket within the MSHSET10 range is also available individually as a replacement.

This allows professional workshops to replace a missing or damaged socket without purchasing another complete set, helping keep the original 6-15mm Britool Hallmark semi-deep socket collection complete.

Individual sockets can also be purchased separately by users who require only specific sizes from the range.

Important Information

• Genuine Britool Hallmark MSHSET10.
• 10-piece 3/8" drive metric socket set.
• Sizes 6mm through to 15mm.
• Semi-deep / intermediate-depth design.
• 6-point hexagon profile.
• High-polish mirror chrome finish.
• Designed for compatible 3/8" drive hand tools.
• These are hand sockets and are not impact-rated.
• Individual replacement sockets are available separately.
• Always use the correct socket size for the fastener and application.

The Britool Hallmark Range

The Britool Hallmark range was developed by Britool in the 1980s for the automotive aftermarket and has been a long-established choice for professional workshop users.

Each spanner carries distinctive Britool Hallmark and "The Marque of Skill" branding,  providing clear identification and reflecting the professional tooling heritage of the range.

The Britool Hallmark guarantee covers defects in materials and/or workmanship when tools are used for the purpose for which they were designed and for their expected service life.

The guarantee does not extend to fair wear and tear, moving parts such as ratchet mechanisms, or consumable items such as bits and repair kits.