GB/T 20704-2006 Active National standards

GB/T 20704-2006 Rock drilling—Rotary drill-rods and rotary drill-bits for dry drilling—Connecting dimensions

Publish Date: 2006-12-20 Implement Date: 2007-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 20704-2006

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Mine construction equipment

ICS Name: Drilling and excavation equipment

Publish Date: 2006-12-20

Implement Date: 2007-05-01

Pages: 5 pages

Scope

This standard specifies the connection dimensions of dry drill rods and drill bit handles for rock drilling, and also provides an example of the connection between wet drill rods and drill bits. However, the standard does not specify the dimensions of the drill rods and drill bits themselves.