Stanley FatMax 10-778 Retractable Utility Knife - Ergonomic 6-5/ 8 In Blade With Onboard Storage

Stanley FatMax 10-778 Retractable Utility Knife pairs a 6-5/8 in handle length with a retractable blade and onboard storage for five included utility blades. For construction and DIY users, the ergonomic soft-touch grip and tool-free blade change matter most.

The Stanley FatMax 10-778 Retractable Utility Knife is a compact hand tool built around a 6-5/8 in handle and a retractable blade mechanism, designed for general-purpose cutting on jobsites and in home workshops. The knife combines an ergonomic black-and-yellow metal and rubber body with internal storage for up to five utility blades so fresh replacements are within reach without opening a toolbox.A US building-supply listing describes the model as the FatMax Retractable Utility Knife, product code 10-778, with a 6-5/8 in handle, lockable retractable blade, and blade storage in the handle.

Design, Dimensions And Blade Mechanism

The 10-778 knife belongs to Stanley's FatMax line of utility knives and uses a retractable blade with multiple fixed positions so users can adjust how much of the blade extends for different cutting tasks. A detailed distributor spec sheet lists a blade length of 2-7/16 in, blade width of 1-3/8 in, and blade thickness of 7/8 in, paired with an overall handle length of 6-5/8 in and overall width of 1-3/8 in.A hardware retailer product detail page notes that the blade is made from carbon steel and that the handle material combines metal and rubber, with an ergonomic profile aimed at general-purpose cutting.

The handle houses a push-button blade change mechanism and pop-up blade dispenser that allow tool-free blade changes directly from onboard storage, reducing downtime when blades dull. The same retailer spec highlights a blade wiper near the nose that removes excess dirt and helps protect the knife, along with a blade clamp designed to eliminate blade wobble for more precise cutting. The InterLock-style nose tightly holds the blade edge in place during demanding cuts, and soft-touch grip panels on the handle are intended to improve control when cutting materials such as carpet or packaging.A wholesaler spec listing confirms the ergonomic grip, InterLock nose, blade wiper, push-button blade change, and inclusion of five FatMax heavy-duty blades with the knife.

Included Blades, Storage And Use Cases

The Stanley FatMax 10-778 ships with five FatMax heavy-duty utility blades stored inside the handle, accessible via a pop-up dispenser activated by a round release button.The same wholesaler listing specifies that the knife includes five 11-700 FatMax heavy-duty blades and that up to five blades can be stored onboard. This configuration makes it suitable for trades that cycle through blades quickly, such as drywall installation, flooring, roofing, and packaging work.

In daily use, the retractable mechanism and multiple blade positions allow shallow scoring of materials like drywall paper or vinyl flooring with limited blade exposure, while fully extended settings support deeper cuts through thicker stock. A European-language product listing on Stanley's German site describes the comparable FatMax retractable knife as having up to five blades stored in the handle, a magnetic nose for easier blade changes, and a design with a quick blade change mechanism and InterLock connection for secure blade retention.The German product page for 0-10-778 lists features such as tool-free blade change, magnetic tip for holding blades during changes, and storage of up to five blades in the handle, aligning closely with the functional description of the US 10-778 model.

Price Positioning In The Utility Knife Segment

Pricing for the Stanley FatMax 10-778 Retractable Utility Knife in the US sits in the mid single-digit to low double-digit band for a single knife, depending on retailer and promotion. A building-supply retailer offers the 10-778 FatMax retractable utility knife with FatMax sub-branding as a single unit; the listing positions the knife alongside other branded utility knives in the same category, with a price typical for ergonomic metal utility knives with onboard blade storage and included blades, within the range generally seen for this type of tool.The Hancock Lumber listing presents the knife as a single-carded unit with retractable blade and onboard storage, consistent with similar utility knives in the category, though the exact price can shift with promotions.

Another US hardware retailer's item detail page for the Stanley 10-778 utility knife shows a price point in the low double digits and describes the application as "for general purpose cutting," reflecting how the model fits into the broader utility knife market.That Honey Brook Hardware listing lists the knife at $11.99 (as of 12/19/2022) with the noted general-purpose cutting application, situating the 10-778 among mid-priced, jobsite-ready knives rather than ultra-budget or premium specialty options.

Comparison With Other Stanley Utility Knives

Within Stanley's lineup of utility knives, the FatMax 10-778 sits between lighter quick-change knives and heavier-duty specialty models. The general utility knives overview for Stanley highlights retractable models like the Quick Change Retractable Utility Knife alongside FatMax-branded options, emphasizing sharpness, durability, and safety for construction and packaging tasks.Stanley's utility knife category page notes that the brand offers quick-change retractable knives and other models with varying ergonomics and blade-change mechanisms.

Compared with simpler retractable knives that may use a screw-open body and lack onboard blade storage, the 10-778 offers a combination of features more typical of mid-tier professional tools. It adds an ergonomic rubberized grip, integrated storage for five blades, pop-up blade dispensing, a dedicated push-button for tool-free blade changes, and a blade clamp designed to reduce wobble. In contrast, some heavier-duty Stanley FatMax trade knives and Exo variants include more advanced housings or different blade carriers but share similar core concepts such as InterLock noses and onboard storage, catering to users who need either compact folding designs or more extreme durability.The broader knives and blades overview shows foldable FatMax knives and heavy-duty trade knives that trade compactness for additional features, giving buyers options depending on whether pocket storage, extra durability, or rapid blade change is the priority.

Brand, Manufacturer And US Presence

Stanley hand tools, including the FatMax 10-778 Retractable Utility Knife, are part of the Stanley Hand Tools brand, which is owned by Stanley Black & Decker, Inc., an American tools and hardware manufacturer headquartered in New Britain, Connecticut.An encyclopedia entry on Stanley Hand Tools describes Stanley Hand Tools as a division of Stanley Black & Decker focused on hand tools, with StanleyTools.com as its primary website.

US customer support information for Stanley Tools lists a mailing address at 480 Myrtle Street, New Britain, CT 06053, along with a customer support phone number at 1-800-262-2161 and contact email.Stanley Tools US customer service documentation confirms this contact data, underscoring that the FatMax 10-778 utility knife is sold under a long-established US hand-tool brand with dedicated support.

Everyday Fit And Who It Suits

In the broader hand-tool landscape, the Stanley FatMax 10-778 Retractable Utility Knife positions itself as a durable, mid-priced utility knife for users who value onboard blade storage, ergonomic grip, and quick blade changes without screws or tools. Tradespeople in construction, flooring, and general contracting who repeatedly cut materials such as drywall, carpet, roofing felt, and packaging often benefit from the combination of a retractable blade with adjustable positions, InterLock nose, and clamp-based wobble reduction, at the cost of slightly more weight than very basic stamped knives.The Honey Brook Hardware product description explicitly frames the 10-778 as suitable for general-purpose cutting, signaling that it is not a niche specialty knife but a mainstream option for everyday cutting tasks.

For home DIY users, the FatMax 10-778 can serve as a primary workshop knife that balances control and durability, with enough onboard blade capacity to handle extended projects without searching for spare blades. Compared to ultra-light disposable utility knives, it adds ergonomic comfort and blade stability; compared to some more elaborate trade knives or folding designs, it keeps the form factor straightforward while still offering key conveniences such as pop-up blade dispensing and quick change without tools. Users who prioritize simple, reliable cutting performance and ready access to additional blades over ultra-compact folding designs or maximum blade capacity are the ones most likely to find the Stanley FatMax 10-778 Retractable Utility Knife a practical fit.

Stanley FatMax 10-778 Knife Facts

• Product: Stanley FatMax 10-778 Retractable Utility Knife, 6-5/8 in handle, onboard storage for 5 blades
• Manufacturer: Stanley Tools, a hand tools brand of Stanley Black & Decker, Inc., New Britain, CT
• Category: Retractable utility knife (hand tool)
• Blade length: 2-7/16 in carbon steel utility blade
• Blade width: 1-3/8 in, thickness 7/8 in
• Handle length: 6-5/8 in ergonomic metal-and-rubber handle
• Included blades: 5 FatMax heavy-duty utility blades stored in handle
• Price: $11.99 (as of 12/19/2022, Honey Brook Hardware)
• Target audience: Tradespeople and DIY users needing a durable retractable utility knife for general-purpose cutting