Kerfoot Technologies, Inc. (formerly K-V Associates, Inc.) 766-B Falmouth Road , Mashpee , MA 02649 USA About Solutions products industries Publications articles Home breadcrumb Companies Kerfoot Technologies, Inc. (formerly ... Products KTI - Model STH3090 - Hefty Soil Gas Probe System KTI - Model STH3090 - Hefty Soil Gas Probe System 0 Share Share with Facebook Share with Tweeter Share with LinkedIn Rotary Hefty system – Rotary hammer drill, nickel plated hardened steel. Shaft sections. Maximum depth capability is 25 feet (15 feet of shafts included with system). Most popular related searches soil gas probe soil gas drilling system Customer reviews No reviews were found for KTI - Model STH3090 - Hefty Soil Gas Probe System. Be the first to review! Add your review Publish your review Great! review successfully added!