Condition	New	Use	Coal Mining
Applicable Industries	Construction works , Energy & Mining	Product name	Taper Button Bit
Weight (KG)	4	Diameter	26mm-56mm
Video outgoing-inspection	Provided	Length	50mm~72mm
Brand Name	JCDRILL	Advantage	High Performance
Type	DRILL BIT	Color	Request
Machine Type	Drilling Equipment	Usage	Drilling and Construction
Material	High Manganese Steel, Carbide, Tungsten Carbide	Transfer	Air/Sea/Express
Processing Type	Forging, Forging

Hollow Drill Rod
Taper Degree	4°, 6°, 7°, 11°, 12°
Diameter	19mm - 25mm (or 1 inch to 7/8 inch)
Length	400mm - 6000mm
Drill Rod Shank	Shank 22 x 108mm, shank 25 x 159mm
Material	High strength alloy steel bar
Color	Black or based on customer requirements.

Minimum Order Quantity	N/A
Price
Packaging Details	Standard Export Delivery Package
Delivery Time	7days
Payment Terms	T/T
Supply Ability	Based on Detailed Order

Hollow drill rods are used in granite and marble quarry, gold mine, railway, tunnel, etc. for   drilling.Hollow drill rods have a tough life, transferring the percussion energy from rock drill   to drilling bit and then into the rock. They're also subjected to high bending stress, not to   mention corrosive water in the flushing hole.