特点及用途：

• 轻踏脚踏开关不到位，下刀横向上运动，方便上针刀与所需行孔修剪的里皮孔边缘对齐
  
• 调节螺母可满足不同厚度的物料加工要求
  
• 踏下脚踏开关，可除去针刀表面粉尘
  
• 上针刀通过磨刀砂轮修磨
  
• 旋转螺母可磨削下刀模
  

Features and uses:

• The light foot pedal switch is not in place, causing the downward knife to move horizontally upwards, making it convenient for the upper needle knife to align with the edge of the inner skin hole that needs to be trimmed
  
• Adjusting the nut can meet the processing requirements of materials with different thicknesses
  
• Pressing the foot switch can remove dust from the surface of the needle blade
  
• The needle knife is sharpened with a grinding wheel
  
• The rotating nut can grind the lower tool mold