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CHICAGO-LATROBE Jobber Length Drill Bit: #78, 135° Point, TiN-Coated 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° Point, TiN-Coated HSS

SKU 3G-OTH-190512

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

CHICAGO-LATROBE
Manufacturer Part Number
41748
Type
TiN-Coated HSS, NAS 907 Type B
Point
135°
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CHICAGO-LATROBE Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the CHICAGO-LATROBE Jobber Length Drill Bit #78 used for?

This TiN-coated HSS drill bit is designed for precision hole drilling in aerospace applications, meeting NAS 907 Type B specifications. Its #78 wire size (0.0160 in.) and 135° split point reduce walking and improve accuracy in hard metals and composites.

What are the specifications of the CHICAGO-LATROBE 41748 drill bit?

The CHICAGO-LATROBE 41748 is a #78 jobber-length drill bit with a 0.0160 in. diameter, 135° point angle, and TiN-coated high-speed steel construction. It conforms to NAS 907 Type B standards for aerospace drilling, offering wear resistance and extended tool life.

Where to buy CHICAGO-LATROBE NAS-spec drill bits worldwide?

3G Electric supplies CHICAGO-LATROBE 41748 and other NAS-spec drill bits to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this precision aerospace tool.

How to select the right jobber-length drill bit for aerospace work?

For aerospace drilling, choose bits meeting NAS 907 standards, like the CHICAGO-LATROBE #78 with TiN coating. Match the wire size (0.0160 in.) to your hole tolerance, and use a 135° split point to reduce thrust and prevent wandering on curved surfaces. Always verify shank compatibility with your collet.

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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