Stepped drill machining high precision, according to different processing conditions may be surface coating to prolong tool life and enhance tool durability.

Stepped drill with high hardness, wear resistance, strength and toughness, heat resistance, corrosion resistance and a series of excellent performance, especially its high hardness and wear resistance. You can quickly achieve drilling + chamfering time molding, especially for starting hole drilling and chamfering.

Step drill machining for automotive, aerospace, sheet metal processing, installation and maintenance of electrical and other industries, while convenient product to carry to meet the high-altitude operations with hand drills and other tools. Depending on the product groove, can be divided into straight groove, spiral groove, circular groove three; according to the number of products can be divided into single-edged blade, double-edged, three blade, four-blade and multi-blade drill ladder; ladder drill normally GB, in everyday industrial use in the majority of customized non-standard.

Standard good tool, do good to Tools Co. in Changzhou. Welcome to visit Oh!