NPK H10XE Hard Rock Chisel Tool

A: The NPK H10XE hard rock chisel tool is made for the NPK H10XE hydraulic breaker: diameter 126 mm, overall length 980 mm, weight 95 kg. Just state your breaker brand and model when you order.

A: Not always. The position and shape of the retaining pin slot change with brand and model; a tool with the same diameter and length may not fit. This tool is made to the slot dimensions of the NPK H10XE.

A: The NPK H10XE hard rock chisel tool is mainly used for: primary demolition, secondary demolition, trenching, recycling, scaling, primary breaking, boom mounted applications. According to the material table in our manual, it is recommended for reinforced concrete slabs, walls, columns and foundations, heavily fractured rock, asphalt and frozen ground.

A: The hard rock version is made from a high-nickel alloy and goes through a special hardening process. It withstands extreme impact forces and abrasive rock, and is the preferred choice for heavy quarrying and mining. For general demolition and construction the standard tool is enough.

A: We make 14 different tools for the NPK H10XE: moil point tools, chisel tools, pyramid tools, blunt tools, with dust grooved and hard rock options. You can reach all of them from the Other Tool Types table on this page.

A: If the NPK H10XE hard rock chisel tool is in stock, it ships quickly. If not, it is made in 5 working days; transport time is added depending on the shipping method.

A: Like all HKM breaker tools, the NPK H10XE hard rock chisel tool is warranted against manufacturing defects only. The fracture surface is examined; if the fracture started from a flaw inside the material, the tool is covered. Breakage from prying, blank firing, rotating the embedded tool or working with worn bushings is not covered.

A: Prying before the tool is fully seated, blank firing, striking one spot for too long, insufficient or wrong grease, and working with worn bushings. On a chisel, twisting also wears the retaining pin slots.

A: Compare the inner diameters of the lower and upper bushings and the thrust bushing surface with the tolerances in your breaker's service manual. Worn bushings move the tool and piston off axis. The NPK H10XE bushings are listed in the Spare Parts section on this page.

A: It is also called “wedge”, “wedge tool”, “flat chisel”. NPK documents use “crosscut chisel”, “in-line chisel”, “hammer tool”. Breaker tools in general are also known as breaker chisels, working tools or hammer tools.