DESCRIPTION
This is a Drill King 4’’ CV IR3.5 DTH Bit (Down-the-Hole) designed with a concave shape for use with an IR3.5 hammer. It features 2 air holes in the face for efficient drilling. The Drill King 4’’ CV IR3.5 DTH Bit consists of 6 parabolic inserts with a diameter of 7/16″ for gage, 4 for the inner row, and 3 buttons on the face, all made of high-quality alloy steel. The shank body is IR3.5 with 8 splines and a length of 7.13 inches. Additionally, it undergoes stress relief processing and ISO-certified inspection for quality assurance.
ABOUT DRILL KING INTERNATIONAL
From Drill King International’s Website:
“Built on the principles of excellence, hard work, service and integrity, it is our mission to provide exceptional customer service and the highest level of premium products at fair prices. Drill King is committed to develop and provide products, services and support of the highest caliber; meeting critical deliveries in an ever-changing market.
Drill King International is a US Manufacturer specializing in top quality DTH drilling equipment and accessories serving the water well, mining, oil, gas and civil construction industries. Drill King is an established and proven company with industry experience of over three decades. We are committed to develop innovative products that exceed our customers’ expectations with an uncompromising commitment to quality.
Drill King is proud to be ISO 9001:2015 certified as of August 2011. Achieving the ISO 9001:2015 standards certification gives further credibility to our promise of world-class quality service and our commitment to continual improvement.”
