Stridsbåt 90 H(alv) (Strb 90 H; CB90) is a class of fast military assault craft used by several countries after being originally developed for the by . Its name means Combat Boat 90 Half; the 90 refers to the year of acceptance (1990) and Half refers to the fact that it can carry and deploy a half platoon of amphibious infantry (18 men) fully equipped. The CB90 is an e.
[pdf] With interchangeable core bits capable of drilling holes from 1.5" to 9" in diameter, operators can tackle diverse pipe materials including vitrified clay, concrete, ductile iron, cast iron, C-900, HOBAS, and PVC/HDPE systems using a single versatile machine.
[pdf] The Roller Bit Core Barrel is used to remove rock samples from drilling operations. The single tube Roller Bit Core Barrel is the cheapest and strongest type with a head, coring tube, a reamer housing and cutting bit.
[pdf] 
