DRIVEN TOOL Russian patent published in 2013 - IPC B24B23/02 B25F5/02 

FIELD: process engineering.

SUBSTANCE: invention relates to hand tool. Proposed tool comprises motor to drive tool cutting adapter, cylindrical casing, cylindrical cover and handle. Said handle is confined by casing and cylindrical cover. Handle outer surface has multiple ledges, each extending between casing and cylindrical cover along tool lengthwise axis. Each said ledge features triangular cross-section visible in handle lengthwise direction and tool horizontal position. Ledges located at top region, above handle centre line, feature triangular shape with inclined surface on the side of top surface extending from base to top and inclined surface on bottom surface, shorter than top inclined one. Ledges located at bottom region, above handle centre line, feature triangular shape with inclined surface on the side of bottom surface extending from base to top and inclined surface on top surface, shorter than bottom inclined one.

EFFECT: ease of handle grip.

6 cl, 4 dwg