High Quality 11 Degree Tapered Drill Rod Small Hole Drilling Tools

Suitable model:

The tapered drill rods are used for Penumatic rock drill and Hydraulic rock drill.Medium hard to hard and abrasive rock formations.

Advantages:

1, Workmanship: taper rod with carburize treatment.

2, tapered 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.

Main Features
1) High quality;

2) High resistance;

3) High footage speed;

4) Very low breakage;

Spherical Button Bit Chart:

1. Shipping time for an order

We have many stock. As usual, we can delivery the goods as soon as we get the full payment.

2. Quality Control

Strict inspection and testing for every order before shipping out .

3.How can we trust your company?

We support trade insurance. Protect products quality, shipment on time and your covered amount.

How to choice the taper degree?

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.

Generally, the lightduty rock drill uses 7 taper or smaller taper angle, the heavyduty rock drill mainly uses 12 taper angle.

Packing:

The MIROC® Rock Drilling Tools product line by KSQ Technologies (Beijing) Co.Ltd.

is the result of years of advanced engineering, precision manufacturing, and dedication to the use of high-quality materials.

Our productions are used by many drilling professionals related to mining, construction, tunneling, and quarrying projects around the globe.