Micrometers

The great feature of Foredom's SR series flex shaft motor is its reversibility. Alternating the motor's direction is useful in symmetrical grinding and carving, extends the life of some abrasives, speeds up and facilitates metal polishing, and helps to keep dust and grindings flying away from right-handed users. Left-handed users have more control of the cutting tool when the motor is in reverse mode. The all new, 1/6 HP ball bearing flexshaft motor has 33% more power than its predecessor - added power that minimizes stalling or slowing under load. Furnished with Foredom's FCT foot control, shaft/sheath, no. 30 handpiece with chuck key (item no. 236-430) plus a 43 piece set of attachments, rotating bur and tool stand, and shaft lubricant. Also available without the flexshaft handpiece or the foot control but with the accessories. 220 volts, made in China.

Instead of a flexible shaft, a micromotor incorporates a tiny though powerful motor within the handpiece. This configuration eliminates vibration and chatter while providing greater grinding precision and a much wider speed range (0-35,000 rpm) than a flexible shaft grinder. The Marathon III Champion is compact and portable, measuring only 4.5" x 6.1" x 3.4" and weighing only 5.25 lbs. Continuous variable speed is regulated through a dial on the control unit, while the foot control serves as an on/off switch. The control unit features a reverse switch, a built-in bur holder for 6 burs, and a selector switch for voltage (110 or 220 volts). The handpiece is equipped with a quick-release chuck incorporating a 3/32" collet and measures 6" long. When not in use, the handpiece is stored in the handpiece holder attached to the control unit. Surprisingly, The Marathon III costs less than most flexible shaft grinders. Made in Korea.

Instead of a flexible shaft, a micromotor incorporates a tiny though powerful motor within the handpiece. This configuration eliminates vibration and chatter while providing greater grinding precision and a much wider speed range (0-35,000 rpm) than a flexible shaft grinder.