NEW WORKSHOP TOOL
Of the many substances which scientists have provided for the automobile manufacturer, few are more striking than a new product, now being used in precision steel cutting for Oakland and Pontiac sixes. It is carboloy, a tungsten carbide, said to be the hardest material ever produced commercially by man. It is so hard that it will cut glass, after the manner of a diamond. An oddity in the'use of carboloy lies in the fact that cutting tools employing this material have to he refinished with a softer abrasive wheel than that used to refinish high-speed steel tools that are infinitely less hard than the carboloy itself. Hard abrasive wheels can’t “bite” carboloy, whereas the wheels of- comparatively soft material do a fine job of refinishing.
MOTOR-CYCLING FIXTURES September 21.—Annual pillion trial of North Shore Club to Waiwera. September 28.—Run by North Shore, Club to Mangere airdrome. October 7. —Monthly meeting of 1 Sports Club. October 11-12.—Week-end run by North Shore Club to Hamilton to join Hamilton Club in hill-climb at Cam- ! bridge, leaving 1 Newmarket at 2 p.m. October 14. —Annual meeting of North Shore Motor-cycle Club.
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Bibliographic details
Sun (Auckland), Volume IV, Issue 1078, 16 September 1930, Page 6
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190NEW WORKSHOP TOOL Sun (Auckland), Volume IV, Issue 1078, 16 September 1930, Page 6
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