Auniwaig R8 Collet 1/2" Closely-Pitched Thread 0.013mm Mill Chuck Holder 65MN Spring Steel 7/16-20UNF Fine Teeth Thread

Key features

• Parameter-Material:65mn Back drawing thread:7/16-20UNF Accuracy:0.013mm Hardness:55
• Advantage-Fine grinding;solid workmanship;complete specifications; precision packaging; long service life;not easy to wear and tear;through a variety of product testing, to ensure the quality of products
• Feature-It is durable and firm，Suitable for all kinds of milling machines with spindle bore R8
• Excellent Performance-Hardened and ground processing, with great performance and long use time.Will durable and practical use
• Special Design-High surface hardness，strong anti-seismic performance,no rust,no fracture,hardening by quenching

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