ADJUSTING DEVICE FOR THREAD FASTENING DEPTH OF THREAD FASTENING TOOL

摘要

PURPOSE:To forcibly discharge the dust of the cylindrical adjusting sleeve inside and to prevent the accumulation of the dust inside the adjusting sleeve by fitting a fan to a driver bit or the driving shaft holding it and providing an air hole by penetrating it through the peripheral side wall of the adjusting sleeve. CONSTITUTION:The dust inside a cylindrical adjusting sleeve 3 is forcibly discharged by the rotation of the fan 5 fitted to a driver bit 2 or driving shaft 4. As a result, the accumulation of the dust inside the adjusting sleeve 3 is checked and the smooth rotation of the driving shaft 4 can be maintained over a long term without spoiling the function of the adjusting sleeve 3.