CHICAGO-LATROBE Jobber Length Drill Bit: #21, 135° Split Point, Black Oxide HSS
The CHICAGO-LATROBE Jobber Length Drill Bit #21 is a NAS-Spec High-Speed Steel Jobber-Length Drill Bit for Aerospace, featuring a 135° split point and black oxide HSS finish per NAS 907 Type B. With a diameter of…
SKU 3G-OTH-189962
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Product Description
The CHICAGO-LATROBE Jobber Length Drill Bit #21 is a NAS-Spec High-Speed Steel Jobber-Length Drill Bit for Aerospace, featuring a 135° split point and black oxide HSS finish per NAS 907 Type B. With a diameter of 0.1590 inches (MPN 45691), this bit is designed for precision drilling in demanding aerospace applications.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the CHICAGO-LATROBE #21 jobber length drill bit used for?
This drill bit is designed for aerospace applications requiring NAS 907 Type B compliance. Its 135° split point reduces walking on curved surfaces, while the black oxide HSS construction provides heat resistance and lubricity for drilling in steel, stainless steel, and titanium alloys.
What are the specifications of the CHICAGO-LATROBE 45691 drill bit?
The CHICAGO-LATROBE 45691 is a #21 jobber length drill bit with a 0.1590-inch diameter, 135° split point, and black oxide high-speed steel construction. It meets NAS 907 Type B standards for aerospace drilling, offering precision and durability in demanding materials.
Where to buy CHICAGO-LATROBE drill bits worldwide?
3G Electric supplies CHICAGO-LATROBE drill bits worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on the 45691 or other NAS-spec tooling.
How to select the correct jobber length drill bit for aerospace work?
For aerospace drilling, choose a bit meeting NAS 907 Type B specs, like the CHICAGO-LATROBE 45691. The 135° split point aids self-centering on curved surfaces, and black oxide HSS extends tool life in tough alloys. Match diameter to your hole tolerance and material hardness.
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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.
