Vintage The Cleveland Twist Drill Co. Circular Drill Speed Calculator Slide
Vintage The Cleveland Twist Drill Co. Circular Drill Speed Calculator Slide
  • Load image into Gallery viewer, Vintage The Cleveland Twist Drill Co. Circular Drill Speed Calculator Slide
  • Load image into Gallery viewer, Vintage The Cleveland Twist Drill Co. Circular Drill Speed Calculator Slide

Vintage The Cleveland Twist Drill Co. Circular Drill Speed Calculator Slide

Regular price
$50.00
Sale price
$50.00
Regular price
Sold out
Unit price
per 
Shipping calculated at checkout.

Vintage The Cleveland Twist Drill Co.
Circular Drill Speed Calculator Slide Chart
This is a Vintage (copyright 1911) The Cleveland Twist Drill Co. Circular Drill Speed & Tap Size Calculator Slide Chart
3" Celluloid spinner gauge from the 1910s era
 Used to help adjust the drill speeds for Wrought Iron, Machinery Steel & Soft Steel back in the years before World War I
Working dial on the front and back that actually moves freely and still works fine
A great early item ready for display!
This is an ORIGINAL item, NOT A REPRODUCTION item!
Has usual wear expected from years of normal use (see photos for clarification), but still a great example of an uncommon collectible item! 
CONDITION
Very Good
 Clean
 Moves easily
 “E.R.K.” etched on backside below Chicago
No other issues noted
See all pictures
Please contact us with any questions!