Coal Drill Bit

Packaging & Delivery chinacoal05

Packaging Detail: carton or as the client's requirements

Delivery Detail: 20 days after the deposit

Specifications

Coal drill bit have following features: large torque, wide drilling range, easy connection and durable

It is mainly combined with spiral drill shank and works together with coal electric drill machine or portable drill machine.

Specification: Drilling Hole Diameter:φ30,φ42

Connective Dimension: φ8.5,φ12.5

Types: Dry type, Wet type

Features: It is mainly combined with spiral drill shank and works together with coal electric drill machine or portable drill machine. Adopting the technical of finish casting and being made of high-grade alloy, the bits have following features: large torque, wide drilling range, easy connection and durable