We can offer hole saws for drilling holes on door of stainless steel or other metal material(iron gate, fence, railing, balcony and garden ironware etc.).  A lot of manufactures of door in Euro & USA would like to source hole cutters from us.  We have our own brand and quality control department, and can offer OEM quality products with competitive price from China.  After nearly 13 years experience in this field of business, based on our strong and reliable services, our customers continuously become solid forever business relationship with us. Our products are exported to door manufacture in other countries, such as USA, Korea......