KNIPEX Tools has introduced a new, extensive line of double-edged bolt and screw extractors. The Rennsteig extractors feature four double-edged cutting and gripping edges that equal eight points of contact. Designed for both left- and right-hand threaded screws, the extractor’s cutting edges provide non-slip engagement, allowing users to remove the toughest, frozen bolts. The new extractors feature a center point, so no additional tools are required to mark the center point for the drill hole. Along with eight points of contact, the high-alloy, German chrome vanadium steel extractors feature a hexagonal driving flat that provides optimum torque and a 58-percent larger size for a better wrench grip compared to square-head styles. For more information, visit www.knipex-tools.com.