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CHICAGO-LATROBE Aircraft Extension Drill: #33, 12" Overall Lg, 135° Split Point - NAS-Spec High-Speed Steel Aircraft-Extension Drill Bits
CHICAGO-LATROBENAS-Spec High-Speed Steel Aircraft-Extension Drill Bits

CHICAGO-LATROBE Aircraft Extension Drill: #33, 12" Overall Lg, 135° Split Point

The CHICAGO-LATROBE Aircraft Extension Drill: #33 is an NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit (SKU 406Y27, MPN 11157). It features a 0.1130-inch diameter, 12-inch overall length, 135° split point…

SKU 3G-OTH-207971

Brand
CHICAGO-LATROBE
Item
Aircraft Extension Drill: #33, 12" Overall Lg, 135° Split Point
Category
NAS-Spec High-Speed Steel Aircraft-Extension Drill Bits
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
11157
Type
Black Oxide HSS
Overall Lg
12"
Split Point
135°
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CHICAGO-LATROBE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CHICAGO-LATROBE Aircraft Extension Drill: #33 is an NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit (SKU 406Y27, MPN 11157). It features a 0.1130-inch diameter, 12-inch overall length, 135° split point, and black oxide HSS finish, conforming to NAS 907 Type B.

Frequently Asked Questions

What is the CHICAGO-LATROBE Aircraft Extension Drill #33 used for?

This drill is designed for aerospace and industrial applications requiring deep-hole drilling in tight spaces. Its 12-inch overall length and NAS 907 Type B compliance make it suitable for aircraft maintenance, sheet metal fabrication, and structural assembly where precision and reach are critical.

What are the specifications of the CHICAGO-LATROBE Aircraft Extension Drill #33?

The drill has a 0.1130-inch diameter (#33), 12-inch overall length, 135° split point, and black oxide HSS finish. It conforms to NAS 907 Type B and carries MPN 11157. The split point reduces walking and improves hole accuracy in hard materials.

Where to buy the CHICAGO-LATROBE Aircraft Extension Drill #33 worldwide?

3G Electric supplies this CHICAGO-LATROBE drill worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver to any country.

How to select the right CHICAGO-LATROBE Aircraft Extension Drill for aerospace work?

Choose based on hole diameter, depth, and material. For aircraft aluminum or composites, a 135° split point and black oxide HSS reduce burrs and heat. Ensure NAS 907 Type B compliance for aerospace specs. 3G Electric can advise on sizing and application fit.

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 aircraft-extension drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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