Check the listing for details. Razertip HD Fixed-tip Medium Spear Shader. Condition: New. Listed at 41.48 USD. NEW, Razertip HD Fixed-tip Medium Spear Shader, 160521, Spear shaped tip for shading, Creates straight lines to points to sharp inside corners, Edge can be used for dark, crisp lines, Fixed tip, The Razertip Heavy Duty Medium Spear Shader Fixed Tip Pen has one of Razertip’s most popular shading tip styles. Spear shaders are useful for most shading techniques, from straight lines to points to sharp inside corners. As with all shaders, the edge can also be used for creating dark, crisp lines. Pen features include: construction from the most advanced temperature resistant resins today; front and mid-body ventilation slots that allow the hot air to easily escape; a laser welded tip to ensure a stronger bond and longer life; a corrugated front body that allows for a greater surface area for.