. Canadian machinery and metalworking (January-June 1919). Die Head Cuts Perfect Threads The H. & G. Die Head illustrated is only 3% outsidediameter, yet it will cut from the smallest up to 1standard thread and up to lVs fine threads. Forabsolute proof of its ability to stand up and givegood results, see the perfect threads it cuts onnuke] steel. You can see these many places, but inalmost any automobile oraeroplane plant for cer-tainty. Made in 9/16, 1, iy2and 2 sizes. No stronger, more dur-able, more accurate DieHead was ever made. Ask for Catalog Eastern MachineScrew Conn.

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmachinery, bookyear19