To help make depth settings easy and accurate, simply align the hole in the depth collar with.
#Drill depth gauge upgrade#
229910000831 Steel Inorganic materials 0.000 description 3.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by JOSEPH E O NEILL filed Critical JOSEPH E O NEILL Priority to US714313A priority Critical patent/US2477891A/en Application granted granted Critical Publication of US2477891A publication Critical patent/US2477891A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Original Assignee JOSEPH E O NEILL Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US714313A Inventor Orville B O'neill Current Assignee (The listed assignees may be inaccurate.
#Drill depth gauge pdf#
Google Patents US2477891A - Twist drill depth gaugeÄownload PDF Info Publication number US2477891A US2477891A US714313A US71431346A US2477891A US 2477891 A US2477891 A US 2477891A US 714313 A US714313 A US 714313A US 71431346 A US71431346 A US 71431346A US 2477891 A US2477891 A US 2477891A Authority US United States Prior art keywords drill sleeve depth gauge head twist drill Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.