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CHICAGO-LATROBE Jobber Length Drill Bit: #78, 135° Split Point, Black Oxide HSS - NAS-Spec High-Speed Steel Jobber-Length Drill Bits for Aerospace
CHICAGO-LATROBENAS-Spec High-Speed Steel Jobber-Length Drill Bits for Aerospace

CHICAGO-LATROBE Jobber Length Drill Bit: #78, 135° Split Point, Black Oxide HSS

The CHICAGO-LATROBE Jobber Length Drill Bit #78 is a NAS-Spec High-Speed Steel Jobber-Length Drill Bit for Aerospace, featuring a 135° split point and black oxide HSS construction per NAS 907 Type B. With a diameter…

SKU 3G-OTH-190139

Brand
CHICAGO-LATROBE
Item
Jobber Length Drill Bit: #78, 135° Split Point, Black Oxide HSS
Category
NAS-Spec High-Speed Steel Jobber-Length Drill Bits for Aerospace
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
44748
Type
Black Oxide HSS, NAS 907 Type B
Split Point
135°

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CHICAGO-LATROBE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CHICAGO-LATROBE Jobber Length Drill Bit #78 is a NAS-Spec High-Speed Steel Jobber-Length Drill Bit for Aerospace, featuring a 135° split point and black oxide HSS construction per NAS 907 Type B. With a diameter of 0.0160 inches (MPN 44748), this bit is designed for precision drilling in demanding aerospace applications.

Frequently Asked Questions

What is the CHICAGO-LATROBE #78 jobber length drill bit used for?

This CHICAGO-LATROBE #78 drill bit is designed for precision hole drilling in aerospace applications. Its 135° split point reduces walking and requires no center punch. The black oxide HSS construction provides wear resistance and lubricity for drilling in metals and composites.

What are the specifications of the CHICAGO-LATROBE 44748 drill bit?

The CHICAGO-LATROBE 44748 is a #78 jobber length drill bit with a 0.0160 inch diameter. It features a 135° split point, black oxide finish, and high-speed steel construction. It meets NAS 907 Type B standards for aerospace use.

Where to buy CHICAGO-LATROBE 44748 drill bits worldwide?

3G Electric supplies CHICAGO-LATROBE 44748 drill bits worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to select the correct CHICAGO-LATROBE jobber length drill bit for aerospace work?

Select based on hole size and material. The #78 bit (0.0160 inch) suits small precision holes. For aerospace, ensure the bit meets NAS 907 Type B specs. The 135° split point aids self-centering. CHICAGO-LATROBE bits are designed for high-speed steel durability in demanding applications.

Used in

Common applications for CHICAGO-LATROBE
Aerospace assembly — Chicago-Latrobe NAS 907 Type B aircraft-extension drill bits for drilling fastener holes in aluminum and titanium skins.
Metal fabrication — Chicago-Latrobe reduced-shank drill bit sets for enlarging holes in structural steel using magnetic drill presses.
Maintenance repair — Chicago-Latrobe left-hand cobalt jobber-length drill bits for removing broken bolts in machinery.
Tool and die making — Chicago-Latrobe jobber-length drill bit sets with 135° split point for precision hole drilling in hardened steels.
Automotive repair — Chicago-Latrobe spiral-flute screw extractors for removing seized fasteners in engine blocks or exhaust systems.
General manufacturing — Chicago-Latrobe HSS jobber-length drill bits for production drilling in mild steel and cast iron.

CHICAGO-LATROBE Products

3G Electric supplies CHICAGO-LATROBE nas-spec high-speed steel jobber-length drill bits for aerospace. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
CHICAGO-LATROBE Jobber Length Drill Bit: #77, 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 44747)
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CHICAGO-LATROBE Jobber Length Drill Bit: #77, 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 44747)
CHICAGO-LATROBE Jobber Length Drill Bit: #79, 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 44749)
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CHICAGO-LATROBE Jobber Length Drill Bit: #79, 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 44749)
CHICAGO-LATROBE Jobber Length Drill Bit: #76, 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 44746)
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CHICAGO-LATROBE Jobber Length Drill Bit: #76, 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 44746)
CHICAGO-LATROBE Jobber Length Drill Bit: #80, 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 44750)
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CHICAGO-LATROBE Jobber Length Drill Bit: #80, 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 44750)
CHICAGO-LATROBE Jobber Length Drill Bit: #70, 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 44740)
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CHICAGO-LATROBE Jobber Length Drill Bit: #70, 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 44740)
CHICAGO-LATROBE Jobber Length Drill Bit: #74, 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 44744)
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CHICAGO-LATROBE Jobber Length Drill Bit: #74, 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 44744)

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