The Milwaukee 48-22-9515 15-Piece Metric Combination Wrench Set covers 8mm through 22mm in a full 15-size metric range, built around Milwaukee’s MAX BITE Open-End Grip geometry. MAX BITE delivers 25% more torque than competitive wrench designs while reducing rounding and stripping on fasteners. The I-beam handle profile provides superior comfort under high-torque applications. Ink-filled size labels are permanently marked on each wrench for easy size identification and quick distinction between metric and SAE sets. The set stores in a storage tray designed for long-term tool chest organization. Backed by Milwaukee’s Lifetime Guarantee.

Key Features

• MAX BITE Open-End Grip — Improved geometry grips nuts and bolts more securely, delivering 25% more torque than competitive wrench designs and reducing rounding and stripping
• I-Beam Handle Design — I-beam cross-section provides superior comfort and control, even when applying high torque
• Ink-Filled Size Labels — Permanently filled size markings for easy identification; quickly distinguish metric from SAE sets at a glance
• Organized Storage Tray — 15-wrench storage tray designed for long-term tool chest storage and organization
• Full 15-Size Metric Range — Covers 8mm through 22mm in the sizes most used in utility, construction, and maintenance work
• Milwaukee Lifetime Guarantee

Sizes Included

• 8mm
• 9mm
• 10mm
• 11mm
• 12mm
• 13mm
• 14mm
• 15mm
• 16mm
• 17mm
• 18mm
• 19mm
• 20mm
• 21mm
• 22mm

Specifications

• Brand: Milwaukee
• Model: 48-22-9515
• Pieces: 15
• Size System: Metric
• Size Range: 8mm – 22mm
• Open-End: MAX BITE grip geometry
• Handle: I-beam design
• Size Markings: Ink-filled, permanent
• Storage: Storage tray included
• Warranty: Milwaukee Lifetime Guarantee
• MPN: 48-22-9515

Frequently Asked Questions

Is this set metric-only, or does it include any SAE sizes?
This is a metric-only set. The 48-22-9515 covers 8mm through 22mm in 15 sizes. If you need SAE coverage, Milwaukee’s 48-22-9415 is the matching 15-piece SAE set (1/4" through 1") with the same MAX BITE geometry and I-beam handle. The ink-filled size labels are designed to make it easy to distinguish the metric set from the SAE set when both are stored in a tool chest.

What is MAX BITE and how does it differ from a standard open-end wrench?
A standard open-end wrench contacts a hex fastener on two flat faces, applying force at just two points. Under high torque, this geometry can slip and round the corners of the fastener. MAX BITE uses a modified jaw geometry that contacts the fastener at more engagement points and shifts the contact zone away from the vulnerable corners of the hex. This is what Milwaukee rates at 25% more torque capacity versus standard competitive designs — it’s a measurable difference in how the wrench distributes load across the fastener head, not just a marketing term.

Which common fastener sizes in utility and arborist work does this set cover?
The 8mm–22mm range covers the vast majority of metric hardware used in outdoor power equipment, chainsaw bars and components, rigging hardware, and general utility maintenance. Key sizes in this range include 10mm, 13mm, and 17mm — among the most commonly used metric fastener sizes across Japanese and European equipment. The set does not include sizes below 8mm (such as 6mm or 7mm for smaller hardware) or above 22mm (such as 24mm for larger bolt heads). If your equipment uses fasteners outside this range, supplemental individual wrenches or a larger set will be needed.

What is the I-beam handle design and why does it matter for high-torque work?
The I-beam cross-section is significantly stiffer in bending than a flat or round handle of the same weight. Under high-torque applications, a flexible wrench handle deflects and reduces the effective force transferred to the fastener while causing hand fatigue. The I-beam profile resists this flex, keeping the wrench rigid and transferring more of the applied force directly to the fastener. For high-torque utility and maintenance work, handle rigidity directly affects both performance and user fatigue over extended use.