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D4299 GM1 master key is a CompX National replacement key designed for pin tumbler locks identified by code GM1, so it serves as a control key wherever that GM1 key system is already in use. The SAP description states this is a master key for a pin tumbler lock, which means it is cut to operate locks built to that GM1 master pattern for service, rework, or keyed system access. The product is classified as a replacement key, so it is suited for restoring operation when an existing GM1 master key is damaged or missing in a shop, plant, or facility setting. The web description identifies this lock master key as GM1, so it supports keyed systems that rely on the GM1 master level for supervisory or maintenance access.
The web description identifies this product as a lock master key for pin tumbler locks with number GM1, so it is keyed specifically to that GM1 pattern and will function where locks are built to that matching GM1 master system. The product class is listed as replacement keys, which positions this key as a direct option when an existing GM1 master key is lost or worn and you need to put that master access back into service. The manufacturer part number D4299 ties the physical key to a precise ordering code, which supports repeat purchasing for shops and facilities that standardize on GM1 across multiple cabinets or fixtures.
The category Locks and Latches|Lock Accessories shows that this D4299 GM1 master key is intended to work as part of a locking system rather than as a standalone lock body, which suits environments where locks are already installed and only key control needs to be managed. The SAP description calls it a master key for pin tumbler locks, so it is used wherever compatible pin tumbler cylinders are configured under the GM1 master pattern in drawers, doors, or enclosures. Because the web description specifies lock master key, pin tumbler number GM1, this key fits into keyed systems that were originally designed around that GM1 code, supporting access routines for supervisors, facility staff, or cabinet installers servicing those locations. The replacement keys product class confirms it is intended for ongoing system upkeep, which is valuable when managing large runs of keyed-alike or master-keyed furniture locks in commercial projects.
The clear identification as a D4299 GM1 master key for pin tumbler locks gives installers and facilities a single, consistent part number to reference, which helps reduce confusion when ordering for multiple projects or reorders. The CompX National brand connection aligns the key with an established lock line, so when your existing locks follow that manufacturer series, this specific master key can be matched to the GM1 code in your records for predictable operation. The brass material listed in the web description means the key uses a traditional key metal, which supports smooth operation in typical furniture and cabinet cylinders over repeated cycles in shops, offices, or institutional millwork. The designation as a lock master key, pin tumbler number GM1, ensures that everyone working with the keyed system can tie their lock charts, key rings, and documentation back to a consistent GM1 master, which streamlines access control and reduces rework when locks or keys are serviced.
The D4299 GM1 master key is described as a master key for pin tumbler locks, so it operates locks that are built to the GM1 pin tumbler master key pattern.
The D4299 GM1 master key is produced under the CompX National brand, which ties it to CompX National lock systems used in many cabinet and furniture applications.
The web description specifies pin tumbler number GM1, indicating the key is cut to the GM1 master pattern used in compatible pin tumbler lock systems for controlled access.
The product class is replacement keys, so the D4299 GM1 master key is intended to replace an existing GM1 master when a new or additional key is required.
The web description lists the GM1 lock master key material as brass, providing a traditional key material suited to everyday cabinet and furniture lock use.
The manufacturer part number D4299 and the GM1 designation together identify this specific CompX National master key for precise ordering and record keeping.
The D4299 GM1 master key pairs the CompX National brand with a clearly defined GM1 pin tumbler master pattern, giving shops and facilities a repeatable way to manage keyed access. With its replacement keys classification and brass construction, this lock master key supports ongoing service of GM1-based lock systems across cabinets, drawers, and fixtures. When your work depends on consistent master-level access to multiple locations using that GM1 pattern, choosing the D4299 part number keeps your lock records, key tags, and ordering aligned.
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