Blue Spot Tools 9 Piece 1/4-3/8" Low Profile AF Imperial Impact Hex Sockets (1/4"-3/4") 01596

Blue Spot Tools 9 Piece 1/4-3/8" Low Profile AF Imperial Impact Hex Sockets

MPN: 01596

Barcode: 5028734015966

Size: 1/4"-3/4"

Weight: 0.39kg

Overview:

This 9-piece AF hex socket set from Blue Spot Tools covers imperial sizes from 1/4" to 3/4" across 1/4" and 3/8" drive. Chrome molybdenum (CrMo) steel and a black phosphate coating form each socket in this low-profile design.

The one-piece construction keeps the overall working height to a minimum. This lets the sockets reach hex fasteners set into recessed positions or confined spaces where a standard-depth socket would not seat.

All nine sockets come on a storage rail to keep sizes together and make them easy to locate. Blue Spot Tools backs this set with their lifetime guarantee.

What's Included

• 1/4" Drive Sockets (20mm depth): 1/4", 5/16", 3/8"
• 3/8" Drive Sockets (30mm depth): 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"
• Storage Rail: x1

Key Features and Benefits

• Chrome Molybdenum (CrMo) Steel: CrMo absorbs repeated impact cycles without the fracture risk present in chrome vanadium alternatives, making each socket safe for use with power tools.
• Black Phosphate Finish: The coating protects the steel surface against rust and corrosion during storage and use.
• Low Profile Design: The reduced working height lets these sockets fit into recessed or space-restricted positions where a standard-depth socket cannot seat.
• One-Piece Construction: A single-piece body removes the weak joint points found in multi-piece socket designs, maintaining strength under repeated impact loads.
• Dual Drive Coverage: Spanning both 1/4" and 3/8" square drive, this set covers a broader torque range without requiring two separate sets.
• Impact Tool Rated: Each socket is built to handle the shock loading of pneumatic and cordless impact wrenches, not just hand tools.
• Socket Rail: Keeps all nine pieces in order, so that the sizes are quick to find during a job.

Specs & Attributes

• Material: Chrome Molybdenum (CrMo) Steel
• Coating: Black Phosphate
• Drive Sizes: 1/4", 3/8"
• Socket Sizes (AF): 1/4" to 3/4"
• 1/4" Drive Socket Depth: 20mm
• 3/8" Drive Socket Depth: 30mm
• Weight: 0.39kg

Typical Applications

• Removing and refitting hex socket cap screws during automotive engine servicing
• Working on classic British or American vehicles fitted with AF imperial fasteners
• Accessing recessed or countersunk hex bolts in tight engine bays or machinery compartments
• Driving hex fasteners with a cordless or pneumatic impact wrench
• Motorcycle engine and frame maintenance where space around components is limited
• Workshop assembly and disassembly tasks involving hex socket head screws

How to Use

• Select the socket size: Match the socket to the hex head on the fastener. The size is stamped on the body of each socket for quick identification.

• Choose the correct drive: Use 1/4" drive sockets for smaller hex fasteners with lower torque requirements. Use 3/8" drive sockets where greater torque output is needed.

• Attach to your tool: Push the socket firmly onto the square drive of your impact wrench, ratchet, or breaker bar until it seats securely.

• Position over the fastener: Place the socket squarely over the hex bolt head or cap screw and confirm a snug fit before applying force.

• Apply torque: Drive the fastener in or out using your impact tool or hand tool until it is secured or fully removed.

• Return to the rail: Place each socket back onto the storage rail after use to keep the set complete.

Frequently Asked Questions (FAQs)

• What does AF mean on sockets?
  AF stands for "Across Flats." It refers to the measurement across the flat faces of a nut or bolt head and is the sizing standard used for imperial sockets. AF sockets fit UNC and UNF fasteners, which are common on American vehicles and older British machinery.

• Why are impact sockets made from chrome molybdenum rather than chrome vanadium?
  Chrome molybdenum (CrMo) has greater toughness and shock resistance than chrome vanadium (CrV). CrMo absorbs the repeated hammer cycles of an impact wrench without fracturing. Chrome vanadium is harder but more brittle, so it can shatter under impact loads and create a safety hazard.

• Can you use impact sockets with a hand ratchet or breaker bar?
  Yes. Impact sockets work safely with hand ratchets, breaker bars, and torque wrenches. The reverse does not apply - standard chrome sockets should not be used on impact tools, as they can crack or shatter under repeated impact loading.

• What are low-profile sockets used for?
  Low-profile sockets are used where there is not enough clearance for a standard-depth socket. Common situations include recessed bolt heads, confined engine bays, and tight automotive or machinery spaces where a full-depth socket would not seat or would obstruct the drive tool.

• What is the difference between 1/4" drive and 3/8" drive sockets?
  The drive size is the square connection point between the socket and the ratchet or impact wrench. A 1/4" drive suits smaller hex fasteners with lower torque requirements. A 3/8" drive handles medium-duty tasks and delivers greater torque output from the drive tool.

Summary

This 9-piece set spans AF imperial hex sizes from 1/4" to 3/4" across both 1/4" and 3/8" square drive. Each socket uses chrome molybdenum steel with a black phosphate finish, making the set suited to impact tool use in tight or confined spaces. Blue Spot Tools backs the complete set with their lifetime guarantee.