SANSUNG offers a complete line of tapered rods and bits for all of your hand-held pneumatic drilling needs. For mine, quarry and tunnel work, we provide quality tools that withstand the toughest rock drilling demands.
With our comprehensive product line, you can find the exact configuration to integrate into your drilling operation. Our tapered bit and rods come in a variety of taper angles, and we provide tapered rods in a full range of shank configurations and steel hex diameters. Our tapered bits include both cross and button designs, as well as chisel design. SANSUNG tapered rods are available with high-frequency or fully carburized heat treatments.

1. Taper chisel bit

The taper chisel bit is widely used in drilling holes with depth less than 5 meters and diameter ranged in 20-45 mm by light-duty rock drill, like Y20, Y24.

1. taper degree: 4°46″, 6°, 7°, 11° and 12°
2. diameter: 28mm to 45mm
3. socket inside diameter: 19mm / 22mm / 25mm
4. length: 50mm to 80mm

2. Taper cross bit

The taper cross bits can be used under any rock drilling condition because of it's comprehensive adaptability. Compared with taper chisel bits, taper cross bits have a better drilling performance because carbide tips on cross bits doubled, which means carbides shape are cross type on drill bits. Taper cross bit is mainly used for hard or very hard rock formation.     

1. taper degree: 4°46″, 6°, 7°, 11° and 12°
2. diameter: 28mm to 45mm
3. socket inside diameter: 19mm / 22mm / 25mm
4. length: 50mm to 80mm

3. Taper button bit

Comparing with taper chisel bits and taper cross bits, button bits has higher technology, much longer primary drilling time and higher drilling efficiency, so that the button bit is popular among the users.
According to the tungsten carbide insert, tapered button bits can be divided into the types of hemispherical button, conical button and parabolic button, etc.
Button bits with hemispherical button is for high bearing capacity and abrasive resistance while conical button and parabolic button are for high drilling speed and low abrasive resistance.  

1. taper degree: 4°46″, 6°, 7°, 11° and 12°
2. diameter: 28mm to 45mm
3. carbide profile: spherical and ballistic
4. socket inside diameter: 19mm / 22mm / 25mm
5. carbide quantity: 4 to 8 pieces
6. length: 50mm to 80mm