Barber Colman Horizontal Hobbing Machine Model 16-16 W/ Special taper Option s/n 4552 Machine is equipped with 6 start worm This Barber colman machine has several unique features allowing you to make specially manufactured parts. the 6 start worm and adjustable taper option is a must for any job shop. contact us for more info machine specifications are as follows: MACHINE SPECIFICATIONS:  * Max. DP in Steel...............................................6 DP-10 DP  * Max. Work O.D. ........................................................16"  * Max. Hob Slide Travel..................................................16"  * Diameter of Hole Through Work Spindle...............................3-1/8"  * Max. Hob Diameter.......................................................5"  * Max. Distance Face of Work Spindle to Tail Bracket.....................29"  * Max. Vertical Adjustment of Work Spindle................................8"  * Dist. C/L of Work Spindle to Underside of Overarm.......................8"  * Dist. C/L of Work Spindle to C/L of Hob Spindle, Max./Min......8.75"/0.75"  * Dist. Face of Work Spindle to C/L of Hob Spindle, Max./Min......19.5"/3.5"  * Max. Hob Slide Swivel Angle Setting-Degrees L or R ....................45  * 9 Hob Speeds (when equipped with suitable gears)...............59-246 RPM  * Hob Feeds (when equipped with suitable gears)................ .0075-.1125"  * Floor Space (approx.) L x W x H............................82" x 38" x 76"  * Weight (approx.).................................................7500 lbs Machine Equipped With: * Adjustable Taper Option (-5- 0 +5 degrees) with vernier scale * 6-Start index worm and Gear * Automatic cycle control * 1 Hob Arbor * Tailstock * Work fixture mounting plate * 25-30 Change Gears * Manual Note: Machine can be inspected under power with Proper Notice. Contact Rich Piselli at Rich@PiselliEnt.com to set up an inspection or Visit our website at WWW.PiselliEnt.com to view this and other Gear Machinery we have in stock.