How to do a True 3 Angle Valve Job SUPER CHEAP Using Neway Tools as good as any pro machine shop Kawasaki z900 / z1000 1976-77 heads valve seat cutter kit carbide tipped z900 / z1000 1976 / 77. 1x GUIDE STEM REAMER HSS 7 mm. 3 ANGLE CUT AS ORIGINAL SEAT. This item is in the category eBay Motors\Automotive Tools & Supplies\Hand Tools\Cutting Tools. Milling in the following sizes.