Rock Drill

Post Rammer Attachments | The Rock drill

The High-Torque Drilling Attachment for Rual Fencing In the Most Challenging Ground Conditions.

The FencePro Rock Drill is a heavy-duty, high-torque post rammer drilling attachment designed to let you and your tractor mounted post driver drive posts in the most challenging ground conditions.

Built to mount directly to the FencePro UltraGlide Rockspike Extractor Kit, the Rock Drill allows you to quickly swap between a rock spike and a rock drill, giving you one versatile system for tackling hard rock, limestone, schist, and other hard ground conditions.

With an impressive 1,700 Nm of torque, the FencePro Rock Drill will drill pilot holes where driving posts was previously difficult or impossible — allowing your hydraulic post driver to keep working productively, even in the toughest terrain. If you regularly fence in hard country, this is the attachment that turns very challenging fencing conditions into a much more manageable task.

The Rockdrill Post Driver Attachment | Product Overview

In this product overview video, Ridge from FencePro goes over the key features of the FencePro Rock Drill Attachement for Hydraulic Tractor Mounted Post Rammers

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The FencePro Rock Drill is a post driver attachment that mounts to the UltraGlide Rockspike Extractor Kit. This means you can run either a rock spike or a rock drill on the same system, and swap between them easily depending on conditions.

It is compatible with most FencePro tractor mounted post rammers and post drivers, including the; Mule, Mule-V, Ultra G2S, Ultra G4, and Ultra T2 (is not compatible with Farmtek models.) Because FencePro machines are built around a modular system, many existing FencePro owners can add the UltraGlide Rockspike Extractor and Rock Drill to their current machine, rather than replacing their post driver. If you already own a FencePro post rammer and are regularly working in hard ground, this is one of the most valuable upgrades you can make.

Rock Drill Post Driver Attachment | Product Photos

FencePro rock drill mounted on hydraulic post rammer, showing auger and high-torque drive unit

FencePro rock drill attachment drilling a pilot hole using a tractor mounted post driver on NZ Farm

FencePro tractor mounted post driver with rock drill attachment drilling pilot holes in rocky high country terrain

FencePro hydraulic post rammer with rock drill attachment.

FencePro Mule post driver with rock drill attachment for drilling pilot holes before driving posts

FencePro post driver using rock drill attachment in steep hill country fencing conditions

FencePro tractor mounted post driver fitted with rock drill attachment ready for drilling pilot holes in tough ground

FencePro post driver operating on a steep bank, fitted with rock drill attachment for fencing in difficult ground conditions

Key Features:

1,700 Nm of high-torque performance via planetary gearbox – drills through extremely hard ground and rock.
Drills pilot holes up to 1500 mm deep (using the 250 mm telescopic extension)
Available in 3 sizes: 100 mm, 150 mm, or 200 mm to suit different post sizes.
Interchangeable rock pilot or earth pilot depending on ground conditions.
Mounts directly to the UltraGlide Rockspike Extractor Kit – meaning you can quickly change between the rock spike and rock drill
250 mm telescopic extension for increased drilling depth and flexibility
Nearside or far side mounting options to suit your tractor and operating preference
Proven design trusted by hundreds of New Zealand farmers and fencing contractors in very tough conditions

A Closer Look | Rock Drill Post Rammer Accessory

Close-up of FencePro rock drill attachment mounted to a tractor mounted post driver

FencePro rock drill hydraulic drive unit fitted to the latest UltraGlide rockspike extractor.

FencePro rock drill fitted to a hydraulic post driver mast, showing high-torque gearbox and hoses

FencePro rock drill fitted to a Ultra T2 hydraulic post driver mast, showing high-torque gearbox and hoses

Fence post installed into solid rock after drilling a pilot hole with FencePro rock drill

FencePro rock drill auger drilling a deep pilot hole for a post in hard ground

FencePro rock drill auger drilling a deep pilot hole for a fence post.

FencePro rock drill drilling/griding through extremely hard ground.

FencePro rock drill tip drilling into schist rock to create a pilot hole before post driving

Hydraulic Requirements:

Rock Drill: Requires 1 additional hydraulic valve function

UltraGlide Rockspike Extractor Kit (which the Rock Drill mounts to):
Manual positioning: requires 1 hydraulic valve function
Hydraulic positioning: requires 2 hydraulic valve functions

Hydraulic positioning is the most popular option with fencing contractors, as it makes the system much easier and faster to operate. Manual positioning is a good option for lower usage or tighter budgets.

Built in New Zealand. Proven in the Toughest Conditions.

Like all FencePro equipment, the Rock Drill system is made in New Zealand and built for real-world farming and fencing conditions.

The UltraGlide Rockspike Extractor Kit uses New Zealand-made hydraulic rams, and the complete system is engineered to handle the high loads and shock associated with drilling and post driving in hard ground.

Every FencePro Rock Drill is backed by:

FencePro’s 24-month warranty (excluding wear parts such as augers, pilots, and teeth)
• A nationwide dealer network for parts, service, and support
• Local knowledge and backup to keep your tractor mounted post driver working when it matters