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CHICAGO-LATROBE Jobber Length Drill Bit: #20, 135° Split Point, TiCN-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: #20, 135° Split Point, TiCN-Coated HSS

The CHICAGO-LATROBE Jobber Length Drill Bit #20 is a NAS-Spec high-speed steel drill bit for aerospace, featuring a TiCN-coated HSS construction with a 135° split point per NAS 907 Type B. It has a 0.1610-inch…

SKU 3G-OTH-189964

Brand
CHICAGO-LATROBE
Item
Jobber Length Drill Bit: #20, 135° Split Point, TiCN-Coated HSS
Category
NAS-Spec High-Speed Steel Jobber-Length Drill Bits for Aerospace
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
43690
Type
TiCN-Coated HSS, NAS 907 Type B
Split Point
135°

Technical Documents

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

Product Description

The CHICAGO-LATROBE Jobber Length Drill Bit #20 is a NAS-Spec high-speed steel drill bit for aerospace, featuring a TiCN-coated HSS construction with a 135° split point per NAS 907 Type B. It has a 0.1610-inch diameter (MPN 43690). 3G Electric interprets demand and delivers this genuine industrial tool across 14 departments, with specialist depth in combustion, pumps, and controls as an authorised distributor.

Frequently Asked Questions

What is the CHICAGO-LATROBE Jobber Length Drill Bit #20 used for?

This drill bit is designed for aerospace and precision industrial drilling applications. Its 135° split point reduces walking and requires no center punch, while the TiCN coating extends tool life on high-strength materials. It meets NAS 907 Type B specifications for demanding manufacturing environments.

What are the specifications of the CHICAGO-LATROBE 43690 drill bit?

The CHICAGO-LATROBE 43690 is a #20 jobber length drill bit with a 0.1610 inch diameter, 135° split point, and TiCN-coated high-speed steel. It conforms to NAS 907 Type B standards, making it suitable for aerospace-grade drilling tasks requiring precision and durability.

Where to buy CHICAGO-LATROBE drill bits worldwide?

3G Electric supplies CHICAGO-LATROBE drill bits worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead times on the 43690 and other NAS-spec tooling.

How to select the right CHICAGO-LATROBE drill bit for aerospace work?

Select based on material hardness and hole tolerance. The #20 size (0.1610 inch) with TiCN coating suits stainless steel and titanium alloys. The 135° split point aids self-centering. Always verify NAS 907 Type B compliance for aerospace applications. 3G Electric can advise on suitable alternatives from the CHICAGO-LATROBE range.

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: #21, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43691)
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CHICAGO-LATROBE Jobber Length Drill Bit: #21, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43691)
CHICAGO-LATROBE Jobber Length Drill Bit: #22, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43692)
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CHICAGO-LATROBE Jobber Length Drill Bit: #22, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43692)
CHICAGO-LATROBE Jobber Length Drill Bit: #19, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43689)
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CHICAGO-LATROBE Jobber Length Drill Bit: #19, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43689)
CHICAGO-LATROBE Jobber Length Drill Bit: #18, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43688)
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CHICAGO-LATROBE Jobber Length Drill Bit: #18, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43688)
CHICAGO-LATROBE Jobber Length Drill Bit: #23, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43693)
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CHICAGO-LATROBE Jobber Length Drill Bit: #23, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43693)
CHICAGO-LATROBE Jobber Length Drill Bit: #24, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43694)
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CHICAGO-LATROBE Jobber Length Drill Bit: #24, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43694)

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