Description
Overview:
The Steel Rod 4mm Precision Ground 333mm Length is a bright-finish, high carbon tool steel round bar for accurate machining, repair, and tool making. From the Silver Steel range, it offers a consistent, precision-ground diameter for reliable fits in bushes, bearings, and collets. The rod measures 4 mm (approximately 0.16 in) in diameter and 333 mm (approximately 13.1 in) in length, with chamfered, deburred ends for safe handling. It machines cleanly on lathes, mills, and drill presses and responds predictably to heat treatment for hardening and tempering when required. Suited to workshop, site, and maintenance use, it is a dependable choice for producing small shafts, pins, punches, arbors, and other precision components where accuracy, finish, and durability are important.
Key Features:
- 4 mm (0.16 in) diameter and 333 mm (13.1 in) length for compact, versatile use
- Precision-ground surface with tight tolerance of ±0.0127 mm for diameters below 25 mm
- High carbon steel for strength, wear resistance, and long service life
- Bright ground finish supports smooth running and accurate fits
- Chamfered and deburred ends for safer handling and easier workholding
- Consistent machining behaviour on lathe, mill, and grinder
- Suitable for hardening and tempering to achieve required tool performance
- Good straightness and roundness for reliable alignment in assemblies
- Uniform properties for repeatable results across multiple parts
- Ready for cutting, drilling, threading, and polishing as needed
Typical Applications:
Making punches, arbors, dowel pins, guides, small shafts, and spacers; producing jigs and fixtures; refurbishing pins and linkages in construction and garden machinery; precision repairs in plant maintenance; prototype work on lathes and mills; components that require a ground finish and the option to heat treat for added hardness and wear resistance.
Also known as:
Drill rod, precision ground rod, bright ground round bar, precision ground bar, ground shafting, hardenable steel rod for toolmaking.
Product Specifications
| L&S Part No. | EML4MM |
|---|---|
| Manufacturer | Silver Steel |
| OEM No. | EML4MM |
| Unit of Sale | 1 |
| Size | 4mm x 333mm x 4mm |
| Key Features | - 4 mm diameter, 333 mm length for versatile use - Precision-ground with ±0.0127 mm tolerance - High carbon steel for strength and wear resistance - Chamfered, deburred ends for safer handling - Suitable for hardening and tempering processes |

