Hard Rock Drill Extension Rod T38 MF / Speed Drill Bit Extension Bar

Hard Rock Drill T38 MF/Speed Drill Bit Extension Bar For Bench and Production Drilling

Description:

Hexagonal drill rod and round drill rods are produced by CNC machining and advanced heat treatment on the base of the same steel as .

Hexagonal drill rods, use for tunneling and drifting drilling.

Thread size: R22, R25, R28, R32, R35, R38, T38, other.

Rod size: Hex.22, Hex.25, Hex.28, Hex.32, Hex.35.

Length: 2100mm to 6095mm.

Round drill rods, use for bench and production drilling.

Thread size: R32, R38, T38, T45, T51.

Rod size: Round 32, Round 39, Round 46, Round 52.

Length: 600mm to 6059mm.
Round drill rod is used extensively for heavy excavation. Compared with the hexagonal rods of the same diameter, the round rods have less material and lighter weight, and are relatively low in operation and cost. The hexagonal rods have significant advantages in light tunneling and tunneling, and their hardness is enhanced to make the holes more straight, to wash holes and to drain slag better. Although the cross section is larger, it is also used with a drill head of the same drill diameter as a round rod of the same size.

Specification:

Production Process:

1. Raw material 2. CNC milling and proprietary heat treatment process 3. Inspection 4. Package.

Competitive Advantage:
High strength chromium-molybdenum steel with high fatigue strength and excellent wear resistance.

The information you may like to know before order:

1. Methods of Payment:

T/T (Telegraphic Transfer) or L/C at sight

2. Handling time for an order

Based on order quantity, normally it takes 25 days for production.

Only 2 or 3 days if we have stock on your request size.

3. Shipping way

Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air

Bulk order: we suggest by air or by sea.

4. Quality Control

We have our own experienced QC.

There will be strict inspection and testing for every order before shipping out.

5. After Services:

a. Our sales team will response for your question within 24 hours (Holidays Excluded)

b. Technical Support will be available at any time

c. Free replacement will be provided once the failure confirmed caused by our product quality

Company Information: