NM Attachments - Class 3 Frost Ripper - Single Tooth, 21" Penetration - AR400 Ripping Tine & Side Wear Plates [NM-3FR-21]

NM Attachments 3FR-21 Class 3 Frost Ripper is a single-tooth excavator attachment designed for serious prying and ripping in frost or rock. With a rated penetration depth of 21 inches, the 3FR-21 combines an extra-thick AR400 steel ripping tine with AR400 side wear plates to provide a durable working tool for demanding ground conditions. It is intended for excavators rated from 6,000 to 10,000 lb operating weight and is suitable for breaking into frozen ground, working through difficult soil, and prying in rocky conditions. The mount must be specified for the excavator; a universal mount fit is not verified.

Built for Frost and Rock

The NM Attachments 3FR-21 frost ripper is engineered around a single, heavy-duty ripping tooth that concentrates excavator breakout force into a narrow working point. Its 21-inch penetration specification provides substantial reach into hard or frozen ground, while the extra-thick AR400 steel tine is designed for demanding ripping applications. AR400 side wear plates add protection to the attachment’s working structure in abrasive conditions.

The manufacturer identifies this product family for serious prying and ripping, particularly in frost or rock. This makes the 3FR-21 a practical attachment for excavation work where standard digging may be restricted by frozen or unusually resistant ground.

Key Features

• Single-tooth excavator frost ripper attachment
• 21-inch penetration depth
• Extra-thick AR400 steel ripping tine
• AR400 side wear plates for added wear protection
• Designed for serious prying and ripping in frost or rock
• Standard CAT-style teeth configuration
• Various tooth options available
• Designed for excavators rated from 6,000 to 10,000 lb operating weight
• Mount must be specified to suit the excavator

Excavator Compatibility

The 3FR-21 is specified for excavators with an operating weight rating of 6,000–10,000 lb. Before ordering, confirm the excavator’s operating weight and provide the required mount details. The catalogue listing does not verify a universal mount fit, and the mount must be specified for the intended machine. Pin-on or quick-coupler compatibility should not be assumed without confirming the required mount configuration.

Mount Requirement

This product is supplied as a ripper attachment, with the mount to be specified. Confirm the excavator make, model, operating weight, and required mounting arrangement before purchase so the attachment can be configured for the intended machine. The verified product information does not define a standard hitch or universal pin-on and quick-coupler fit.

Specifications