B23B51/1085

Boring Tool With Deburring Assembly
20220305572 · 2022-09-29 ·

A cutting tool may include a shank having a drive end for interfacing with a powered driver, a body portion extending operably coupled to and extending away from the shank, a cutting portion extending from the body portion and sharing an axis with the shank and the body portion, the cutting portion including a plurality of cutting edges, and a deburring assembly operably coupled to the cutting portion or the body portion. The deburring assembly may be configured to be fully insertable into a hole cut by the cutting tool.

COMBINATION TOOL AS WELL AS DRILLS FOR SUCH A DRILLING/CHAMFERING TOOL
20220184717 · 2022-06-16 ·

The combination tool (2), in particular a drilling/chamfering tool, comprises a drill (6) extending in the longitudinal direction (4) with a clamping sleeve (8), which is designed to receive the drill (6) and fasten the drill (6) at a variable length and which has a holding seat (38) for a cutting insert (12). The drill (6) comprises a cutting region (22) provided with grooves (14), wherein the grooves (14) extend helically and are formed between two grooves (14) drill backs (18). At least one of the drill backs (18) is partially flattened to form an adjustment surface (16) for the cutting insert (12), wherein the adjustment surface (16) extends helically. As a result, a length adjustment over a large length range is made possible independently of the twist angle (γ).

Combination tool as well as drills for such a drilling/chamfering tool

The combination tool (2), in particular a drilling/chamfering tool, comprises a drill (6) extending in the longitudinal direction (4) with a clamping sleeve (8), which is designed to receive the drill (6) and fasten the drill (6) at a variable length and which has a holding seat (38) for a cutting insert (12). The drill (6) comprises a cutting region (22) provided with grooves (14), wherein the grooves (14) extend helically and are formed between two grooves (14) drill backs (18). At least one of the drill backs (18) is partially flattened to form an adjustment surface (16) for the cutting insert (12), wherein the adjustment surface (16) extends helically. As a result, a length adjustment over a large length range is made possible independently of the twist angle ().