一、目前手打眼所採用之方式,計分單手鎚與雙手鎚兩种,钎子均用與機械鑿岩所用相同之實心炭素鋼,(六角、八角、圓形三種)钎子刃多為一字形者。單手鎚之鎚頭重量,普通是2～3磅,兩端稍曲如羊角狀,(见第一图甲)鎚柄長約40cm左右。雙手鎚之鎚頭重量為6～8磅,最大亦有12～15磅者,形為八角之柱狀体,(見第 First, the current method of using hand-eye, scoring one-handed hammer and two-hand hammer, both with the use of mechanical rock drilling hammer the same solid carbon steel, (hexagonal, anise, round three) For the shape of a person. One-hand hammer hammer weight, usually 2 to 3 pounds, slightly curved at both ends, such as horn-shaped, (see Figure A) hammer handle about 40cm. Two hammer hammer hammer weight of 6 to 8 pounds, the largest also have 12 to 15 pounds of persons, shaped as octagonal columnar body (see the