$91.00
1 Year for machinery warrantyProtection: Trade Assurance Protects your orders
On-time Dispatch GuaranteeRefund Policy.
Supply Ability：50000 Piece/Pieces per Month
| Product Name | Hexagon and round rock drill hollow steel (hexagon drill bit, drill bit for metal, wear resistant hollow steel drilling, resistant hollow steel drilling rod, hexagonal hollow drill steel wear) |
|---|---|
| Material | 55SiMnMo,23CrNi3Mo |
| Origion | Henan,china |
| Standard | Atlas standard |
| hexagon hollow steel diamter | 19/22/25/32/35/38MM |
| Round hollow steel diameter | R32/R39/R46/R52mm |
| Application | rock drill rod (hexagon hollow rock drill steel, hollow rock drill steel rod, drill steel rod for making) |
| Used | rock drills |
Packaging Details：package with bundle
Port ：qingdao port/shanghai port/tianjin port/guangzhou port
Lead Time: 3days with stock
HEXAGONAL HOLLOW-STEEL
| Denomination | Nominal size and tolerance (mm) | Ho dia incl.ovality (mm) | Eccentricity (mm) | R=(mm) | Weight (kg/m) |
|---|---|---|---|---|---|
| H19 drill rod | 19/ (+0.3, -0.2) | 6.0/ (+0.7, -0.8) | 0.5 | 2.5 | 2.21 |
| H22 drill rod | 22.2/(+0.3, -0.2) | 6.7/(+0.7, -0.8) | 0.6 | 3.0 | 3.05 |
| H25 drill rod | 25.3/(+0.4, -0.2) | 7.6/(+0.8, -0.7 ) | 0.7 | 3.0 | 3.97 |
| H28 drill rod | 28.6/(+0.5, -0.3) | 8.8/(+0.8, -0.7) | 0.8 | 3.5 | 5.05 |
| H32 drill rod | 32.1/(+0.6, -0.2) | 9.5/(+0.8, -0.7) | 0.9 | 4.0 | 6.36 |
| H35 drill rod | 35.3/(+0.6, -0.3) | 9.5/(+0.8, -0.6) | 1.0 | 4.0 | 7.86 |
Standard: Natinal standard, Altas copco’s stanard, Customer’s standard
Email:bruce@kingkongdrillsltd.com
elsa@kingkongdrillsltd.com
Whatsapp/wechat:+86 17638571343
www.kingkongdrillsltd.com
www.kingkongdrillslimited.com
www.chinadrillingtools.cn
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