Drill King International is a leading United States manufacturer with combined history for over 40 years of a wide range of down-the-hole (DTH) drilling products – from air and fluid hammers to casing advance systems, shock subs and up to 42” diameter bits. Drill King’s line of hammers are designed to endure the toughest drilling conditions, thanks to Drill King’s proprietary alloy steel. All DTH equipment is produced at Drill King’s 60,000 square feet ISO 9001:2015-registered factory in Mansfield, Texas, USA.