20pc starter set is perfect for tooling mini lathes and other machinery. Set includes 5" straight, left hand and right hand tool holders with 1/4" x 2-1/2" HSS tool bits. 6-3/4" long double ended boring bar with hex key, holder and 1/4" x 2-1/2" HSS tool bit. 4" double wheel pivot head knurling tool fitted with HSS knurls. 4-1/2" straight shank cut off tool holder supplied with 3/32" x 1/2" HSS Cut off blade. 1/2" lathe dog bent, 1/2" lathe dog straight and T-slot cleaner. 7" Heavy duty knurled scriber, 3/32" square head center punch, 6" / 150mm stainless steel rule and 6" divider.