Subaru Corporation

Sumitomo Electric Hardmetal Corp.

Mori Seiki Co., Ltd.

Dmg Mori Seiki Co., Ltd.

Mitsubishi Hitachi Tool Engineering, Ltd.

Yasuhiro Inamasu

Morihiro Hideta

Koji Sato

Manabu Saito

Shinya Matsuo

Kazuo Maeda

Hisayuki Oode

Hideo Mori

Shoujirou Touma

A cutting tool cover set to a cutting tool which includes a hollow shaft body and at least one insert attached to an end face of the shaft body and cuts by bringing the insert into contact with a work while rotating the shaft body. The cutting tool cover includes: a body portion fixed to a top end portion of the shaft body; and an extension portion extended outward from the circumferential edge of the body portion in the entire circumference of the top end portion of the body portion to cover the surface of the work.

Cover for cutting tool, holder for cutting, and cutting device

A tool has a shank and a cutting blade mounted on the shank. The tool also includes an internal fluid passage for drawing in, together with air, chips produced when the cutting blade machines a workpiece. The internal fluid passage comprises a through hole made in the shank, at least one main inlet hole for drawing in the chips together with the air, the main inlet hole being made in the cutting blade and being in fluid communication with the through hole, and at least one sub-inlet hole for drawing in at least the air, the sub-inlet hole being made in the shank and being in fluid communication with the through hole. The chips can efficiently be discharged from the tool without being deposited in the internal fluid passage, by the air which flows at a suitable speed through the internal fluid passage and draws the chips, regardless of the diameter of the tool.

Tool with internal fluid passage

Growing community of inventors

Iga, Japan

Yasuhiro Inamasu