GB/T 17984-2000 Twist drills-Technical specifications

Standard No.: GB/T 17984-2000
Language: Chinese
Release Date: 2000
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Replace By: GB/T 17984-2010
Lastest: GB/T 17984-2010

Scope: This standard specifies the technical requirements for size, material and hardness, appearance and surface roughness, marking and packaging of common grade twist drills and precision grade twist drills. This standard applies to twist drills manufactured by various processes according to GB/T 6135.1~6135.5 and GB/T 1438.1~1438.4 (but the rolling process is not suitable for manufacturing precision grade twist drills). According to the agreement between the supplier and the buyer, other twist drills can also be used. Refer to adopt. This standard does not apply to woodworking drills and self-made twist drills.

GB/T 17984-2000Twist drills-Technical specifications