Specifically aimed at the toolmaking industry, Rainford Precision has now introduced the new series of HSB-S Unimax ball nose end mills from Union Tool. The new range of small short shank end mills is targeted at manufacturers who demand the utmost in precision, performance and longevity when machining intricate features and challenging materials.
The new 2-flute short-shank end mills are ground to an H4 tolerance of 0/-0.004 mm, demonstrating that this product line is the tool of choice for precision machine shops that demand performance levels that are beyond the realms of most tooling vendors. Designed for application with precision machine tools and tool holders such as shrink-fit holders, the HSB-S is offered with an overall length from 35 to 40 mm to minimise tool protrusion and maximise rigidity.
Importantly a key feature of this range is the ±0.003 mm tolerance of the ball nose radius to improve surface finish when machining this is aided by having a +0/-0.004 mm shank tolerance ensuring concentricity of the cutting edges is at its highest.
The HSB-S Unimax is offered with a ball nose radius of R0.1, R0.15, R0.2, R0.3, R0.4, R0.5, R0.75, R1, R1.5 and R2 mm with a length of cut from 0.2 mm to 4 mm. Designated as a series for machining materials of 40HRC and above; this range delivers uncompromising levels of tool life and performance. This is guaranteed through the innovative HardMax coating technology, negative rake angle geometry and overall precision of the tool geometry. These features combine to provide the ideal balance of tool hardness, heat-resistance and durability. The negative rake reduces as the radius transitions to the periphery and this minimises tool deflection and generates mirror-finish surfaces that far exceed the quality of anything seen before.
As well as offering precision, performance, uncompromising surface finishes and tool life, the HSB-S also delivers flexibility with its ability to effectively machine materials such as carbon, alloy, pre-hardened and hardened steels up to 70HRC. Additionally, the HardMax coating enables the HSB-S to efficiently process copper, cast iron, titanium alloys and heat-resistant alloys.
For manufacturers looking for a long necked version for reaching difficult to access surfaces, Rainford Precision can also offer the HSLB-S series. Available with a ball nose radius from R0.1 to R3 mm, the HSLB-S range has a maximum clearance length of 20 mm with an overall length from 35 to 50 mm depending upon the selected tool diameter. For more details on the stub length HSB-S or the extended length HSLB-S, please contact Rainford Precision for more information.