SITEH3RO™ Car Reamer - 5/16" is backordered and will ship as soon as it is back in stock.
Product Description
SITEH3RO™ Car Reamer — Safer Hole Expansion with Up to 75% Longer Tool Life
The SITEH3RO™ Car Reamer is a professional-grade reaming tool engineered to expand and enlarge holes in tough metals without grabbing, significantly reducing operator risk during use. Designed for trades professionals and contractors working on-site, it is compatible with both impact wrenches and standard 3-jaw drill chucks, offering versatile deployment across jobsite conditions. The spiral flute design combined with a safety collar enables fast, controlled drilling with reduced risk upon completion. Available in a wide range of diameters and also offered in kit configurations (SHRCR1, SHRCR2 & SHRCR3) for maximum flexibility.
Technical Specifications
| Specification | Details |
|---|---|
| SKU | CR0516 |
| Available Diameters | 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1", 1 1/16" |
| Coating | SITEH3RO™ coating — up to 75% longer tool life |
| Flute Design | Spiral flute |
| Safety Feature | Safety collar |
| Compatible Drive | Impact wrench; standard 3-jaw drill chucks |
| Kit Options | SHRCR1, SHRCR2, SHRCR3 |
Unlike standard reamers that can grab and transfer dangerous torque to the operator, the SITEH3RO™ Car Reamer's spiral flute and safety collar design are specifically engineered to eliminate that risk — making it significantly safer when used with an impact wrench. The proprietary SITEH3RO™ coating sets it apart from uncoated alternatives by delivering up to 75% longer tool life, reducing replacement frequency and downtime on the job.
Key Features & Benefits
SITEH3RO™ Coating for Extended Tool Life
The exclusive SITEH3RO™ coating provides up to 75% longer tool life compared to uncoated reamers. For contractors working high-volume or repetitive reaming tasks, this translates directly into fewer tool replacements and lower cost per hole.
Spiral Flute Design
The spiral flute geometry allows for quick, efficient material removal while helping to prevent the tool from grabbing in the workpiece. This design supports smooth, controlled reaming even in tough metals.
Safety Collar
The integrated safety collar provides a positive stop upon completion of the reaming operation, reducing the risk of over-penetration or sudden tool movement. This is a critical safety feature when working in confined or awkward positions on-site.
Impact Wrench Compatible
Using the SITEH3RO™ Car Reamer with an impact wrench massively reduces torque transferred to the operator compared to many other handheld power tools. In cases where the reamer grabs, the impact wrench's mechanism prevents injury — making this combination significantly safer for the operator.
Standard 3-Jaw Drill Chuck Compatible
The reamer is also suitable for use in standard 3-jaw drill chucks, giving contractors flexibility to use the tool with equipment already on-site without requiring specialist tooling or adapters.
Wide Diameter Range & Kit Availability
Available in 13 diameters from 5/16" to 1 1/16", the SITEH3RO™ Car Reamer covers a broad range of hole sizes in a single product line. Kit options (SHRCR1, SHRCR2 & SHRCR3) allow contractors to stock multiple sizes efficiently.
Common Applications
Hole Alignment On-Site
Use the Car Reamer to align misaligned holes in structural metalwork quickly and accurately on-site using an impact wrench.
Hole Cleaning and Deburring
Clean out and dress existing holes in metal components to remove burrs, scale, or debris before fastener installation.
Hole Enlargement in Tough Metals
Expand undersized holes in hard metals without the grabbing risk associated with standard drill bits or uncoated reamers.
Compatible Materials
- Tough metals (as specified for hole expansion and alignment applications)
Frequently Asked Questions
Q: Is it safe to use a Car Reamer in an Impact Wrench?
A: It's significantly safer to use the SITEH3RO™ Car Reamer in an Impact Wrench as it massively reduces torque to the operator risk. In cases where the reamer grabs, it does not risk injury — unlike many other handheld power tools.


