BS 2593:1974

This standard BS 2593:1974 Specification for rotary drill rods and tungsten carbide tipped rotary drill bits is classified in these ICS categories:

• 25.100.30 Drills, countersinks, reamers

Dimensions, one-piece bits including pilot and reamer bits and tungsten carbide tips with appropriate hardness grades. Materials and slot for bit, pitch of rod, straightness, and interchangeability requirements.