Bit size 0.1 to 0.9 mm item code:304-356
Bit size 1.0 to 1.5 mm item code:304-357

Bit size = 0.1 to 0.9 mm, 1.0 to 1.5 mm
Chuck = 2.34 mm

Tip metal had well and properly quenched and keep strength. Shaft brake is minimum and make it possible for smooth and stable rotating, drilling works.
*Made in Japan