ntly snap off Inthe hole. In another part of the article, Mr. Rose says :Three flutes are all that are necessary to small taps,whlchleave the top stronger and less liable to wobble,especially In holes that are not round, than If It hadfour flutes. Taps of a larger size may have more flutes,but the… … represents the outline of a bole not a true circle. B Isa section of a tap with three flutes. When in the posi-tion shown, the point, A, does not touch, and the diam-eter of the hole being greater across C D than wherethe other two flutes, E, K, of the tap are cutting, thetap will be forced back…
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