Recent Blogs
Cramp Drill (form 2) Mechanism Explained: How the Screw-Feed Hand Drill Works, Parts and Uses
Explore Brown’s second cramp drill, with a spindle inside a hollow feed screw. Calculate spindle speed, axial feed, feed per bit revolution and ideal feed...
Cramp Drill (form 1) Mechanism Explained: How the Screw-Feed Hand Drill Works, Parts & Uses
Explore Brown’s first cramp drill with separate drill and feed controls. Calculate screw turns, axial feed, ideal feed time and feed-handle travel.