What is it?
The Push Drill is a hand tool which is turned by pushing a nut back and forth along a spirally-grooved drill holder. It was formerly used for delicate operations such as jewelry making and dentistry. A ratcheting screwdriver with a 'spiral ratchet' mechanism may be used as a Persian drill. Who uses it and why? Jewelers and dentists use this tool for precision. What materials can they be used on? They can be used on minerals and gemstones, and teeth. Less likely, it can also be used on wood and other materials of the same density. How is it used? It's used by turned by pushing a nut back and forth along a spirally-grooved drill holder. What are their distinctive features? It usually has a wooden handle at the top and a long spirally-grooved drill holder. Sizes vary. Where can I buy it? Local Sears stores have it in storage. How much does it cost? They cost about $50.00 to $40.00. |