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The Forstner bit continues to be manufactured, although it has evolved into a split-ring design. Also, modern Forstner bits normally feature a (non-screw) lead point (AKA "brad point" or "center spur"), unlike Forstner's original, although rim-guided bits are still available from some manufacturers. [2] [better source needed]
It has small and evenly distributed carbides giving high wear resistance, though its decarburization sensitivity is a little bit high. After heat treatment, its hardness is the same as T1, but its bending strength can reach 4,700 MPa (680,000 psi), and its toughness and thermo-plasticity are higher than T1 by 50%.
Forstner is a surname. Notable people with the surname include: Benjamin Forstner (1834–1897), an American gunsmith, inventor and dry-goods merchant;