| http://www.w3.org/ns/prov#value | - U.S. Pat. No. 5,273,557 for TWIST DILLS HAVING THERMALLY STABLE DIAMOND OR CBN COMPACTS TIPS to Cerutti et al. concerns a rotary drill bit with a slot in which there is a diamond compact held therein by a braze alloy with a liquidus greater than 700 ??? C. U.S. Pat. No. 5,137,398 for a DRILL BIT HAVING A DIAMOND-COATED SINTERED BODY to Omori et al. shows a twist drill with a detachable insert rece
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