Improved processing tool for groove of air chamber air opening

The invention relates to an improved processing tool for a groove of an air chamber air opening. The improved processing tool comprises a tool head and a tool handle, and is characterized in that a structure gradually thickened from front to back extends from the joint of the tool head and the tool handle to the tool handle, a transition support angle beta is formed through the structure graduallythickened from front to back, and the overall reinforced support structure of the tool with the structure gradually thickened from front to back is formed; the helix angle alpha of the blade part ofthe tool head is 35 plus or minus 1 degree, so as to reduce the contact with the processing surface during cutting and form a structure for preventing tool collapsing and chip removal; the axial corethickness of the tool head is 2.6 mm-3.0 mm to increase hardness of the tool and a reinforced tool internal rigid structure is formed; length L of the cutting edge part of the tool head is 7.0 mm plusor minus 0.1 mm to increase