A safety feeder usable with different woodworking machines includes a fixing frame releasably mountable on a woodworking machine. A device connects to the fixing frame. The fixing frame cranes the device. The device includes a drive device, a transmission system, and at least one first and second pressing rollers. The drive device engages with and is able to drive the at least one first and second pressing rollers through the transmission system. The transmission system includes an axle engaging with the at least one first and second pressing rollers. The at least one first and second pressing rollers are disposed separately in an axial direction with a predetermined gap on the axle.

A wire coil stabilizer and saw guide for cutting jump rings from a coil of wire including a block with a half circle groove having a bottom slot for holding a coil of wire threaded on a jeweler's saw blade. A tracking plate with a slit aligned with the bottom slot for compressing the coil of wire in the groove and aligning a jeweler's saw blade with the coil of wire.

A wire coil stabilizer and saw guide for cutting jump rings from a coil of wire including a block with a half circle groove having a bottom slot for holding a coil of wire threaded on a jeweler's saw blade. A tracking plate with a slit aligned with the bottom slot for compressing the coil of wire in the groove and aligning a jeweler's saw blade with the coil of wire.