TM 9-243TYPES AND USESParts of a hammer are as follows:1 Claw4 N e c k2 E y e5 Striking face3 Handle6 CheekCARPENTER’S HAMMERThe carpenter’s hammer is used for driving and pullingnails and tapping wood chisels.There are two types of claws,CURVED CLAWSTRAIGHT CLAWCAUTIONNever use a claw hammer on a steelpunch or on hardened steel-cut ormasonry nails. The face is too soft andcould chip.Be sure to check for a loose head or acracked handle before use.And there are two types of striking faces.FLAT FACEBELL FACEN O T EWhen using a flat-faced hammer to drive anail, the nail head must be square with theface of the hammer at time of impact. Thebell-faced hammer offers a uniform faceto the nail head even though the hammerface is slightly tipped at time of impact.Hammers come in 7, 13, 16 and 20 ounce sizes. Yourselection should be based upon the following: flat facefor rough work, or bell face for finishing work where youdon’t want dents in the finish.The straight claw is generally used for ripping and fram-ing. The curved claw is preferred for general use.MACHINIST’S PEEN HAMMERAll machinists peen hammers have a flat striking faceon one end of the head for striking punches and chisels.The other end of the head can be one of the following:A ball peen hammer is used for forming soft metal,peening rivet heads, and striking metal in out-of-the-wayplaces.21-2
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