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特征
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1.
钻进钢筋混凝土，石材、玻璃、陶瓷等硬脆材料，用水冷却。
2.
钻孔规则，光滑，效率高，劳动强度小，能保证工程质量。
3.
用途：各种水，电，煤气，空调孔，卫生管道，工程取芯等钻进。 |
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钻头直径
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有效长度
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刀头尺寸 (mm)
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尾部连接螺纹
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英制
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合制
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长
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厚
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高
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刀头数
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1"
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25
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300
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16
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4
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7
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4
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5/8"-11NC
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11/8"
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28
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300
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18
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4
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7
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4
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5/8"-11NC
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11/4"
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31
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300
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20
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4
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7
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4
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5/8"-11NC
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13/8"
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35
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300
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22
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4
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7
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4
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5/8"-11NC
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11/2"
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38
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300
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24
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4
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7
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4
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5/8"-11NC
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15/8"
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41
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300
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28
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4
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7
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4
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5/8"-11NC
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13/4"
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44
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300
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30
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4
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7
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4
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5/8"-11NC
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2"
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51
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300
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22
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4
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7
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6
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11/4"-7NC
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21/4"
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57
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300
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25
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4
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7
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6
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11/4"-7NC
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21/2"
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63
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300
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28
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4
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7
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6
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11/4"-7NC
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23/4"
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70
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300
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25
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4
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7
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6
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11/4"-7NC
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3"
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76
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350
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25
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4
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7
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6
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11/4"-7NC
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31/4"
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82
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350
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25
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4
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7
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7
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11/4"-7NC
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31/2"
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89
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350
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25
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4
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7
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8
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11/4"-7NC
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33/4"
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95
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350
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25
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4
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7
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8
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11/4"-7NC
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4""
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101
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350
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25
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4
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7
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9
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11/4"-7NC
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41/4"
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108
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350
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25
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4
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7
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9
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11/4"-7NC
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41/2"
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114
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350
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25
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4
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7
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10
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11/4"-7NC
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5"
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127
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350
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25
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5
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7
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11
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11/4"-7NC
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51/2"
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140
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350
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25
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5
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7
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12
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11/4"-7NC
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6"
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152
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350
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25
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5
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7
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13
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11/4"-7NC
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61/4"
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158
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350
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25
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5
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7
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14
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11/4"-7NC
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61/2"
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165
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350
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25
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5
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7
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14
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11/4"-7NC
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7"
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178
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350
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25
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5
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7
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16
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11/4"-7NC
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8"
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202
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350
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25
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5
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7
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18
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11/4"-7NC
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