Chicago-latrobe 3G-OTH-189998 — Technical Specifications

Name: Chicago-latrobe 3G-OTH-189998 CHICAGO-LATROBE Jobber Length Drill Bit: 4.5 mm, 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 45838). Key specifications — attr1225567: 0.1772.
Brand: Chicago-latrobe

The CHICAGO-LATROBE Jobber Length Drill Bit (4.5 mm, MPN 45838) is a NAS-Spec High-Speed Steel drill bit for aerospace applications, featuring a 135° split point and black oxide finish. It conforms to NAS 907 Type B standards, with a diameter of 0.1772 inches.

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Technical Specifications

Parameter	Value
Type	Black Oxide HSS, NAS 907 Type B
Split Point	135°
Manufacturer Part Number	45838