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  • Name: Tapered drill rod
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Tapered drill rod

Different rock formations and rock drills require different taper angles. When drilling with high impact hydraulic rock drills in medium-hard to hard and abrasive rock formations, a wide taper angle is normally used. Taper angles of 11 and 12-degrees are normally used on modern drill rigs. For low impact rock drills and softer rock formations, a narrow taper angle of seven degrees is used. A 7-degree angle can also be used if bit spinning is a problem when using 11 and 12-degree equipment. In addition, a 4,46 degree angle is ideal for soft rock when you're using pneumatic or hydraulic drill rigs - to prevent bits from spinning or becoming detached.

 

Part number 

Taper Angle 

Shank 

Length 

Weight

 

 

mm

mm

kg

BT220600-6

6°(7° 11° 12°)

Hex 22 x 108

600

2.2

BT220800-6

6°(7° 11° 12°)

Hex 22 x 108

800

2.8

BT221000-6

6°(7° 11° 12°)

Hex 22 x 108

1000

3.4

BT221200-6

6°(7° 11° 12°)

Hex 22 x 108

1200

4

BT221400-6

6°(7° 11° 12°)

Hex 22 x 108

1400

4.5

BT221600-6

6°(7° 11° 12°)

Hex 22 x 108

1600

5.1

BT221800-6

6°(7° 11° 12°)

Hex 22 x 108

1800

5.7

BT222000-6

6°(7° 11° 12°)

Hex 22 x 108

2000

6.5

BT222200-6

6°(7° 11° 12°)

Hex 22 x 108

2200

7.2

BT222400-6

6°(7° 11° 12°)

Hex 22 x 108

2400

7.8

BT222600-6

6°(7° 11° 12°)

Hex 22 x 108

2600

8.3

BT222800-6

6°(7° 11° 12°)

Hex 22 x 108

2800

8.9

BT223000-6

6°(7° 11° 12°)

Hex 22 x 108

3000

9.5

BT223600-6

6°(7° 11° 12°)

Hex 22 x 108

3600

11.2

BT224000-6

6°(7° 11° 12°)

Hex 22 x 108

4000

12.7

BT224800-6

6°(7° 11° 12°)

Hex 22 x 108

4800

15.2

BT225600-6

6°(7° 11° 12°)

Hex 22 x 108

5600

18.4

BT226400-6

6°(7° 11° 12°)

Hex 22 x 108

6400

20

BT227200-6

6°(7° 11° 12°)

Hex 22 x 108

7200

22

BT228000-6

6°(7° 11° 12°)

Hex 22 x 108

8000

24.5

Part number:BT220600-6 is BT(Chiesl bit)22(Shank size)0600(Length)-6(Taper angle)