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12° Taperd Drilling Tool
According to the different choices of customers, we offer four quality products, including Grade A, Grade B, Grade C and Grade D. Customers can choose suitable drill rod according to different hardness of rock and types of rock drilling tools.
According to the different choices of customers, we offer four quality products, including Grade A, Grade B, Grade C and Grade D. Customers can choose suitable drill rod according to different hardness of rock and types of rock drilling tools. Grade A drill rod QSAAA and GTIII can be applied to solid rock, III level or above and f≥12 rocks according to Protodikonov’s Hardness Coefficient of Rock. Grade B drill rod QSAA and G30 is suitable for IV level or above and f≥12 rocks, Grade C and Grade D drill rod suitable for IV level or below and f≤8 rocks.
12° tapered drilling tools
| Button bit (12°) | Dimensions (D) | Flushing hole (mm) | Buttons (mm) | Angle | Part no. | |||
| mm | inch | Front No size |
Gauge No size |
Front No size |
Front No size |
|||
H22 |
32 33 35 36 38 40 |
1 1/4” 1 5/16” 1 3/8” 1 13/32” 1 1/2” 1 9/16” |
1×4 1×4 1×5 1×5 1×5 1×5 |
2×4 2×4 2×4 2×4.5 2×4.5 2×5 |
5×7 5×7 5×7 5×8 5×8 5×8 |
2×7 2×7 2×7 2×7 2×8 2×8 |
40° 40° 40° 40° 40° 40° |
30322207-12 30332207-12 30352207-12 30362207-12 30382207-12 30402207-12 |
H22 |
32 34 38 45 |
1 1/4” 1 11/32” 1 1/2” 1 3/4” |
1×4.5 1×4.5 1×5 2×4 |
2×4.5 2×4.5 2×5 2×5.5 |
6×7 6×7 6×8 6×9 |
2×7 2×7 2×8 2×8 |
15°35° 15°35° 15°35° 15°35° |
30322208-12 30342208-12 30382208-12 30452208-12 |
H25 |
36 38 41 43 |
1 13/32” 1 1/2” 1 9/16” 1 11/16” |
1×5 1×5 1×5 1×5 |
2×4.5 2×4.5 2×5 2×5 |
5×8 5×8 5×9 5×9 |
2×7 2×8 2×7 2×8 |
35° 35° 35° 35° |
30362507-12 30382507-12 30412507-12 30432507-12 |
| H22
|
30 32 34 36 38 40 |
1 3/16” 1 1/4” 1 11/32” 1 27/64” 1 1/2” 1 37/64” |
2×5 2×5 2×5 2×5 2×5.5 2×5.5 |
– – – – – – |
– – – – – – |
– – – – – – |
– – – – – – |
313022-12 313222-12 313422-12 313622-12 313822-12 314022-12 |
| H25
|
30 32 34 36 38 40 |
1 3/16” 1 1/4” 1 11/32” 1 27/64” 1 1/2” 1 37/64” |
2×5 2×5 2×5 2×5 2×5.5 2×5.5 |
– – – – |
– – – – |
– – – – |
– – – – |
313025-12 313225-12 313425-12 313625-12 313825-12 314025-12 |
| Tapered drill rod (12°) | Dimensions L | Dimensions D | Part no. | |||
| mm | ft | inch | mm | inch | ||
Hex shank 22*108mm |
610 1220 1830 2000 2440 3050 3200 3660 |
2 4 6 6 8 10 10 12 |
– – – 7 – – 6 – |
22 22 22 22 22 22 22 22 |
7/8 7/8 7/8 7/8 7/8 7/8 7/8 7/8 |
10220612 10221212 10221812 10222012 10222412 10223012 10223212 10223612 |
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