Product Details:

Hook Timing Adjustable Gauge Set, Singer

Details:
Hook Timing Gauges
Includes 4 gauges for
(a) 600 & 700 Touch & Sew
(b) 900 & 2000 Series
(c) 4600 top bushing
(d) 4600 lower bushing
Time saving tools for your repair bench. Instruction sheet included.