Mechanisms — bow drill

Recent Blogs

Fiddle Drill diagram
Fiddle Drill Mechanism: How It Works, Parts, Formula, and Uses in Watchmaking and Jewellery
Fiddle drill explained — how the bow-string spindle drill works, why jewellers and watchmakers still use it, plus a worked speed example and selection guide.
Pump Drill Stock diagram
Pump Drill Stock Mechanism Explained: How a Reciprocating Cord-and-Flywheel Hand Drill Works
Pump Drill Stock explained — how the reciprocating drill stock converts vertical pumping into rotary drilling for jewellers, lapidaries and bow-drill workshops.