Plain back front mounting, widely used on  lathe machine.chucks dia.80--1000mm
K21 self-centering chucks are provided with one-piece jaws,including a set of internal jaw and a set of external jaw.
The jaws for K21…A,K21…C and K21…D chucks are composed of two pieces jaws--top jaw and master jaw.
Body materials are classfied as wear-resisiting alloy iron.
Plain back front  mounting(Short cylindrical connection)
Company instructions:
Yantai Formore Machinery Co., Ltd. Located in a beautiful coastal city of Yantai, Shandong, China. We specializes in supplying Machine Accessories for more than ten years .We supply machine tools, such as NC turret, steady rest,dividing head, rotary table, machine vises, lathe chucks, magnetic chucks, live center ,tools post ,drill chucks and so on.   If you need our products please feel free to contact me. I will provide the best service. 
we also provide bellow products:




RFQ:
Q: What can I get the price?
A: We usually quote within 2 hours after we get your inquiry. If you are very urgent to get the   price, please tell us in your email so that we will regard you inquiry priority.

Q: What is your term of delivery?
A: We accept EXW, FOB Qingdao  etc or CFR QINGDAO etc. You can choose the one which is the most convenient or cost effective for you.

Q: What about the lead time for the mass production?
A: Honestly, it depends on the order quantity and the season you place the order.

Q: Are you trading company or manufacturer ?
A: We are factory and trade company.

Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.