DASBET Variable Cylinder Spanner Wrench Set 15Pcs — Adjustable Pin Wrench, 1/2-inch Drive 12-inch Handle

The DASBET Variable Cylinder Spanner Wrench Set 15Pcs is an adjustable pin spanner kit designed to remove and install pulleys, camshaft and crankshaft components, and other slotted or holed fasteners across cars, motorcycles, scooters, and bicycles.

This compact, versatile kit gives professional mechanics and DIYers a single solution for tasks that require precision pin engagement and extra leverage. With a long handle that accepts a 1/2-inch drive and an interchangeable assortment of pins, the set adapts to multiple diameters and hole patterns so you avoid makeshift methods that damage parts or slow you down. The included molded case keeps bits organized for shop or mobile use.

How does the DASBET set adapt to different pulley sizes?

The main wrench features a sliding adjustable head that expands from about 1-1/4 inches up to 5 inches (3.2–12.7 cm) by loosening a single adjustment bolt, letting you position the pin holder precisely. Swapping pins lets you match hole or slot diameters so the spanner engages cleanly without slipping.

• Adjustable span: 1-1/4" to 5" (3.2–12.7 cm)
• Single-bolt adjustment for fast setup
• Interchangeable pin selection for different hole sizes

Which pin sizes are included and when should I use each?

The kit contains seven pin diameters—3.5, 4, 4.5, 5, 6, 6.5 and 10 mm—covering most service and maintenance needs for motorcycles, bicycles, and many automotive pulleys. Match the pin diameter to the hole size or slot width of the component to ensure secure engagement and prevent rounding.

• 3.5–6.5 mm pins for small engine covers and accessory pulleys
• 10 mm pin for larger industrial or automotive fixtures
• Choose the closest snug fit to avoid slippage or part damage

Can I get more reach or torque using this wrench?

Yes—the 12-inch (30.5 cm) long pin wrench is designed to accept a standard 1/2-inch drive ratchet or breaker bar to increase reach and apply greater torque safely. That configuration makes stubborn or seated pulleys easier to loosen while keeping hands clear of moving parts.

• 12" handle fits 1/2" drive tools for extra leverage
• Compatible with ratchets and breaker bars for controlled force
• Long shaft helps access recessed or awkward components

How is the set stored and transported?

All pieces are organized in a heavy-duty molded storage case with precision-fit compartments to protect pins and prevent loss. The case keeps everything in order for quick selection, reduces wear during travel, and fits neatly into a tool chest or service bag.

• Molded foam/compartment layout for each pin and wrench
• Durable exterior for garage or mobile service use
• Compact footprint for easy storage and transport

Who this is for: The DASBET Variable Cylinder Spanner Wrench Set is ideal for motorbike mechanics, home garage enthusiasts, bicycle techs, and automotive DIYers who need a flexible, reliable pin-spanner option for camshaft, crankshaft, pulley holders, and similar slotted or holed components. If you service multiple vehicle types or want a single kit that replaces several specialty wrenches, this set provides the range of pin sizes, adjustable span, and added-drive compatibility to handle routine maintenance and occasional stubborn fasteners without improvisation.