Sumitomo General Catalog 2025-2026

For Optical Shim Mold Machining, etc. For Micro Lens Array Mold Machining, etc. Ultra-Precision Cutting Tool UPC-Nano Groove / UPC-Nano Ball Endmill Optical Components

Ultra-precision Cutting Tool UPC-Nano Groove For Optical Shim Mold Machining, etc.

Enables high-precision linear grooving with a cutting edge width among the world's smallest. Grooving holder with 5μm minimum groove width. Enables quick high-aspect-ratio machining that cannot be achieved using the photolithography method or ion-beam method. The high-precision, durable cutting edge is the ideal tool for ‹ne, clear grooving of hologram diffraction gratings, linear ‹ne grooving, LCD light guide plates, and so on.

 Features D Grooving holder with 5μm minimum groove width. D Durable cutting edge with high-precision grinding. D Enables high-precision ‹ne grooving that cannot be achieved using the photolithography method or ion-beam method.

AL

 Applications D For linear ‹ne grooving, optical shim molds, light guide plate mold machining

Cutting Edge Shape

L

X

45°

45°

A

Cutting Edge Shape

Nano Groove Cutting Edge

(1) L: 51, W:  6.35 (2) L: 60, W:  8 Standard Size

Ultra-precision Cutting Tool UPC-Nano Ball Endmill For Micro Lens Array Mold Machining, etc.

World's smallest ballnose endmill Enables high-precision 3D machining with its extremely sharp cutting edge. Fine 3D curved surfaces can also be machined, as well as quick machining of multiple ‹ne spherical holes.

 Features D This ballnose endmill is the world's smallest in its class with a radius of 30μm. D World's highest class pro‹le of 50nm is also possible. D Enables high-precision 3D machining with its extremely sharp cutting edge.

 Applications D For micro lens array molds, LCD light guide plate molds, ‹ne machining molds

Cutting Edge Shape

L

0 to 0.005

30°

R

Window Angle

45°

100μm Example of Cutting Using a Nano Ballnose Endmill

10μm

(0.010)

Cutting Edge Shape

G

5

20°

20

(1) L: 50, W: ø6 (2) L: 40, W: ø4

Standard Size

AL11

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