Package Contents

7pc Cr-V Open End Wrenches METRIC

• Sizes: 6x7, 8x9, 10x11, 12x13, 14x15, 16x17, 18x19
• Eva foam with marked labels for easy storage

5pc Cr-V Open End Wrenches SAE

• Sizes: 1/4x5/16, 3/8x7/16, 1/2x9/16, 5/8x3/4, 13/16x7/8"
• Eva foam with marked labels for easy storage

7pc Cr-Mo Open End Wrenches METRIC

• Sizes: 6x7, 8x9, 10x11, 12x13, 14x15, 16x17, 18x19
• Eva foam with marked labels for easy storage

5pc Cr-Mo Open End Wrenches SAE

• Sizes: 1/4x5/16, 3/8x7/16, 1/2x9/16, 5/8x11/16, 3/4x7/8"
• Eva foam with marked labels for easy storage

Cr-V Product Specifications

• Flat wrench design: Super-thin design for those limited access workspaces areas
• Wrench material: 6140 Chrome Vanadium steel
• ASME Specification: B107.100-2002
• Foam Tray Size: Metric 11.81" x 2.16" x 5.11"
• Foam Tray Size: SAE 14.17" x 2.36" x 4.52"
• Country of Origin: Taiwan

Metric Set Dimensions

• 6 & 7 mm = 15 x 2 cm
• 8 & 9 mm= 18 x 2.5 cm
• 10 & 11 mm = 18 x 2.5 cm
• 12 & 13 mm = 21 x 3.5 cm
• 14 & 15 mm = 21 x 3.5 cm
• 16 & 17 mm = 25 x 4.5 cm
• 18 & 19 mm = 25 x 4.5 cm

Metric Wrench Thicknesses

• 6 & 7 mm = 2 mm
• 8 & 9 mm = 2 mm
• 10 & 11 mm = 2.5 mm
• 12 & 13 mm = 3 mm
• 14 & 15 mm = 3 mm
• 16 & 17 mm = 4 mm
• 18 & 19 mm = 4 mm

SAE Set Dimensions

• 1/4 & 5/16" = 15 x 2 cm
• 3/8 & 7/16" = 18 x 2.5 cm
• 1/2 & 9/16" = 21 x 3.5 cm
• 5/8 & 3/4" = 25 x 4.5 cm
• 13/16 & 7/8" = 29 x 5 cm

SAE Wrench Thicknesses

• 1/4 & 5/16" = 2 mm
• 3/8 & 7/16" = 2 mm
• 1/2 & 9/16" = 3 mm
• 5/8 & 3/4" = 4 mm
• 13/16 & 7/8" = 4 mm

Cr-Mo Product Specifications

• Flat wrench design: Super-thin design for those limited access workspaces areas
• Wrench material: SCM440 Chrome Molybdenum
• Foam Tray Size: Metric 9.61" x 32.94" x 2.16"
• Foam Tray Size: SAE 14.17" x 29.16" x 2.36
• Country of Origin: Taiwan

Metric Set Dimensions

• 6 & 7 mm = 14.7 x 1.9 cm
• 8 & 9 mm= 16 x 2.5 cm
• 10 & 11 mm = 14.5 x 2.3 cm
• 12 & 13 mm = 19 x 3.3 cm
• 14 & 15 mm = 20.8 x 3.3 cm
• 16 & 17 mm = 23 x 4.3 cm
• 18 & 19 mm = 25 x 4.3 cm

Metric Wrench Thicknesses

• 6 & 7 mm = 2.5 mm
• 8 & 9 mm = 2.5 mm
• 10 & 11 mm = 2.5 mm
• 12 & 13 mm = 4 mm
• 14 & 15 mm = 4 mm
• 16 & 17 mm = 4.5 mm
• 18 & 19 mm = 4.5 mm

SAE Set Dimensions

• 1/4 & 5/16" = 14.5 x 2 cm
• 3/8 & 7/16" = 17.5 x 2.5 cm
• 1/2 & 9/16" = 21 x 3.3 cm
• 5/8 & 11/16" = 23 x 4.3 cm
• 3/4 & 7/8" = 27 x 5 cm

SAE Wrench Thicknesses

• 1/4 & 5/16" = 2.5 mm
• 3/8 & 7/16" = 2.5 mm
• 1/2 & 9/16" = 4 mm
• 5/8 & 11/16" = 4.5 mm
• 3/4 & 7/8" = 6 mm

What Are the Features of the Olsa Flat Wrench Set?

The Olsa Tools slim profile wrench set combines professional-grade quality with innovative design features for mechanics working in confined spaces. Here are the features that set these wrenches apart:

• Ultra-thin profile: The slim profile reaches fasteners in tight spots. These wrenches work for specialized tasks such as brake line work, sway bar end link maintenance, and tie rod end adjustments where standard wrenches can't reach.
• 15-degree offset design: Each wrench has a 15-degree head tilt so you can flip the wrench to access awkward spaces and choose the best working angle.
• Complete size range: The set offers a comprehensive range of sizes with no skips, providing the exact wrench you need. Each wrench features a dual open-end design that maximizes functionality and saves space in your toolbox.
• Durable construction: Built for professional use, these wrenches are made of either chrome-vanadium or chrome-molybdenum steel; both types feature a chrome-plated, corrosion-resistant finish for prolonged precision and durability.
• Professional quality: The sleek design reflects the set's premium quality and attention to detail. These wrenches exceed ASME standards by 30%, proving Olsa's commitment to professional-grade tools at competitive prices.

Like all Olsa Tools products, the slim profile wrench set comes with a limited lifetime warranty against manufacturer defects and a 90-day completely risk-free trial period.

Why Do People Use Flat Wrenches?

Flat wrenches reach the tightest spots where bulkier tools won't fit. The super thin open-end wrench design for automotive tasks such as maintenance of brake lines, tie rod adjustments, and access to tight engine compartments. The wrench head sits at a precise 15-degree angle for additional clearance around obstacles.

In limited-access workspaces, a flat, ultra-slim profile saves significant time by reaching fasteners that would otherwise require extensive disassembly to access.

Whether you’re tool shopping for a DIY project or an auto repair shop, these wrenches tackle a wide range of tasks, including:

• Air conditioner repair.
• Bicycle repair.
• Furniture assembly.
• Exhaust system work.
• Brake line maintenance.
• Transmission pan service.
• Engine accessory mounting.
• Suspension component adjustments.
• Fuel line connections.
• Cooling system maintenance.

What Is the Difference Between an Open Wrench and a Combination Wrench?

An open wrench (or open-end wrench) features a U-shaped opening on both ends that fits around nuts and bolts. The open design lets mechanics slip the wrench onto fasteners from the side, which works well when the fastener end is inaccessible from above.

A combination wrench includes two wrench styles in one tool. It features an open end on one side (like an open wrench) and a closed end on the other. Both ends match in size. The closed end grips fasteners more securely with less chance of slippage, while the open end offers quick side access.

The main advantage of a combination wrench is in its dual functionality: mechanics get the benefits of a wrench and a ratchet in a single tool.

What Is the Thickness of Olsa’s Slim Wrenches?

These flat wrenches are 4 mm thick, about half the profile of a regular wrench. The ultra-thin design opens up access to many tasks with minimal clearance.

Can Olsa Tools Thin Wrenches Handle High-Torque Applications?

Yes, Olsa Tools thin profile wrenches handle moderate to high-torque applications with outstanding durability. The chrome-vanadium steel version is engineered 30% above ASME standards ratings to reliably handle most tasks. The chrome-molybdenum version is even stronger. This set can tackle the toughest fasteners and withstand exceptional torque.

For extreme situations with heavily rusted or over-tightened bolts, you should reach for specialized high-torque tools such as breaker bars or impact wrenches.

Will Olsa Slim Profile Wrenches Fit Common Automotive Fasteners?

Yes, Olsa slim profile wrenches fit standard automotive bolt heads and nuts. The dual open ends accommodate most common metric and SAE fasteners in modern vehicles. The flat-wrench design and 15-degree offset head let you reach brake lines, fuel lines, suspension components, and other tucked-away car parts.

What Are the Common Wrench Materials?

Most wrenches are made from carbon steel. Professional-grade wrenches use chrome-vanadium steel or chrome-molybdenum steel. Manufacturers add chrome plating to prevent rust on all these materials.

How Do Tappet Wrenches Differ From Regular Flat Wrenches?

Tappet wrenches are thin, open-ended wrenches used to adjust valve clearances (tappets) in tight engine spaces. Their extra-thin design and longer handles provide better control than regular flat wrenches. The specialized jaws grab locknuts tightly, so mechanics can set valve clearances to spec.

Regular flat wrenches have thicker profiles and shorter handles. They tackle general automotive fasteners but lack the finesse needed for tappet work, where exact torque and careful movements matter most.

How Do I Take Care of My Flat Wrenches?

To take care of your flat wrenches, you can use Olsa tool wipes. Wipe your wrenches after each use as regular cleaning improves corrosion resistance and grip on fasteners. Store your wrenches in a dry place and use tool organizers to prevent scratches. For extra protection, wipe light oil on the chrome surface.

How Can I Organize My Wrenches?

Olsa Tools offers several professional-grade options to organize your wrench sets. Our mount securely to any steel surface, and our rotating wall mounts work in vertical and horizontal positions.

Olsa Tools’s organization systems go perfectly with our slim profile wrenches to create an efficient workspace for both mechanics and DIY users. Add a tool organizer to your order to maximize the functionality of your new wrench set.

What Other Wrench Types Does Olsa Offer?

Olsa Tools manufactures several types of wrenches to meet specific repair needs:

• Ratcheting wrenches provide exact torque control with 120-tooth fixed and flex head options. Each set includes both standard and stubby lengths in SAE and metric sizes.
• Plier wrenches adjust to multiple fastener sizes. The firm jaw grip works on round, flat, and hex materials without damaging surfaces.
• Torque wrenches measure and set exact target torque values. In our collection, you will find split beam torque wrenches and click-type torque wrenches.
• Offset bolt extractor wrenches provide leverage and reach in confined areas. The offset design removes damaged bolts in automotive repair tasks such as brake and exhaust work.
• Stubby wrenches feature a compact design for working in extremely tight spaces while maintaining the same torque capabilities as full-length wrenches.
• Combination wrenches offer open-end and 12-point box-end designs with a 15-degree offset for improved access and versatility.

Does Olsa Offer Adjustable Wrenches?

Olsa Tools offers adjustable plier wrenches. With 2-inch jaws and a 10:1 leverage, you can loosen stubborn fasteners on the go. These tools come with Olsa's lifetime warranty and meet professional mechanic standards.