CS Unitec Centering Aid - for 2 1333, 2 1335 & 2 1317 hand-held core drills Product Guide

The CS Unitec Centering Aid is an accessory designed to assist with the precise positioning of certain hand-held core drills, specifically models 2 1333, 2 1335, and 2 1317. It solves the common challenge of aligning the drill accurately on the marked drilling point, improving the initial setup and drilling accuracy when working on concrete and similar materials.

This type of centering aid is typically used on job sites where handheld core drilling is required to create smooth, clean openings for plumbing, electrical conduits, HVAC systems, or structural testing. Operators rely on the centering aid to stabilize the drill’s starting point, helping to prevent bit wandering and reducing the risk of off-center holes. In rental applications, this ensures consistent results across multiple users who may be less familiar with each specific drill model.

Where This Is Used

• Concrete or masonry cores for construction, renovation, or maintenance projects
• Installation of building services such as plumbing, electrical conduit, or HVAC ducting
• On-site structural testing or sampling requiring precise core hole placement

Key Details

Selection Notes

When selecting a centering aid, confirm it matches the model of your core drill to ensure proper fit and alignment. The deciding factor is usually the drill model compatibility rather than size or drilling capacity since the aid is specific to these handheld units. Consider the drilling environment — this aid is ideal for handheld core drills commonly used in congested or awkward sites where fast and accurate setup reduces rework. For rental situations, it helps operators unfamiliar with the exact drill maintain positioning consistency.

Drill Setup Notes

Before beginning a core drilling job, securely fasten the centering aid onto the compatible hand-held drill following the equipment guidelines. Verify that the aid centers the drill bit precisely over the marked hole location. Check that the combined setup fits through any access restrictions on the job site and does not interfere with drill operation or cooling. After drilling, inspect the centering aid for wear or damage, as a compromised aid can affect positioning accuracy. Regular cleaning to remove dust and slurry from contact surfaces supports optimal alignment performance over time.