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BTA Head
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BTA DRILL TUBE
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Diameter range,mm
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Dimensions,mm
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L
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D
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D1
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L1
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15.60 ~16.70
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1600
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14
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12.6
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21
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16.71 ~17.70
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1600
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15
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13.6
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21
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17.71 ~18.90
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1600
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16
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14.5
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22
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18.91 ~ 20.00
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1600
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17
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15.5
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22
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20.01 ~ 21.80
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2600
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18
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16
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25
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21.81 ~ 24.10
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2600
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20
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18
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26
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24.11 ~ 26.40
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2600
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22
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19.5
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26
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26.41 ~ 28.70
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2600
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24
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21
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26
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28.71 ~ 31.00
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2600
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26
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23.5
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29
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31.01 ~ 33.30
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2600
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28
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25.5
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29
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33.31 ~ 36.20
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2600
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30
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28
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29
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36.21 ~ 39.60
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2600
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33
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30
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36
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39.61 ~ 43.00
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2600
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36
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33
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36
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43.01 ~ 47.00
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2600
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39
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36
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36
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47.01 ~ 51.70
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2600
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43
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39
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36
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51.71 ~ 56.20
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2600
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47
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43
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40
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56.21 ~ 65.00
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2600
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51
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47
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40
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60.61 ~ 65.00
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2600
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56
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51
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40
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