If you have questions about our products, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. Diamond Core Drill Bits 1 High effciency, long life and no breaking of segments 2 Sizes of adaptor for threaded bit:M14,M16, G1 2 ",5 8 "-11 3 Applicable for drilling of brick wall,concrete, concrete with steel *Subject: *Your Name: *Email: *Phone: Whatsapp: Company: Country: *Content: Einreichen Δ