Style L oilers made for drive-in assembly are one-piece die-castings. Drive shanks are accurately turned to uniform diameters for each assembly in holes drilled to size.
Style L oilers are used extensively on motors and small machinery requiring side oiling and extremely low cost. Zinc plated, 1-piece die-casting, has flat wrench hold on most Style L screw-type oilers. Also available in drive-in models.