400 Series C Clamp, Sliding Pin, 5 in Throat Depth ORS NASCO Evolution standard geometry is sufficient Evolution standard geometry is sufficient for most drilling applications Manufactured specifically to maximize hole accuracy while minimizing cutter vibration and extending annular cutter life Using this standard geometry enhances accuracy and saves time This allows for a single ejection of slugs when drilling through stacked material High quality Grade R single line welding hoses Grade R welding hoses are designed for carrying acetylene or oxygen to welding equipment Green hose carries oxygen to welding equipment Red hose carries acetylene Hose cover resists oils Drop forged steel frame regular duty with extra deep throat Black oxide spindles and perma pad® resist corrosion and are replaceable Innovative frame geometry for maximum strength