flexible shank

flex·i·ble shank

(fleks'i-bĕl shank)
Thin diameter shank that enhances the amount of tactile information transmitted to the clinicians fingers.
Medical Dictionary for the Dental Professions © Farlex 2012
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True to its name, this lightweight design is very quiet, and has a flexible shank at the heel that allows for better weight distribution.
It features a durable but flexible shank and soft pads at the heel and box for comfort.
For beginners and professionals who want a supple, flexible shank, www.freedusa.com
Choose a medium, hard, or flexible shank. Made-to-measure orders are available.
Also includes a padded heel counter and flexible shank. 800.942.5624, www.blochwortd.com.
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