Dymaxion Diamond Electroplated Hole Saws - HDEM Series Size:13mm They feature a collapsible handle

They feature a collapsible handle for added storage options

steel or other long items

Auto Ranging

ToughCut Helical / Spiral Cutterheads for Planer / Thicknessers

Dymaxion Diamond Electroplated Hole Saws - HDEM Series Size:13mm They feature a collapsible handleAbout this item: Diamond core drills and hole saws require the use of proper lubrication, correct drill speed and proper pressure. Drilling methods and techniques vary significantly depending upon the material being drilled. To achive optimum cutting performance and maximum core drill life use a slow to very slow drill speed, low drill pressure, and plenty of water for lubrication. Variable speed drills work best since the correct speed can be