OSG Screw Machine Drill Bit: 27/64", 130° R-Thinning Point
SKU 3G-OTH-409588
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Frequently Asked Questions
What is the OSG 27/64" screw machine drill bit used for?
This OSG general-purpose cobalt screw-machine length drill bit is used for precise drilling in metalworking applications, particularly on CNC lathes and screw machines. Its TiN coating reduces friction and extends tool life when machining steel, stainless steel, and other alloys.
What are the specifications of the OSG 10421905 drill bit?
The OSG 10421905 is a 27/64" (0.4219 inch) diameter screw-machine length drill bit with a 130° R-thinning point and TiN-coated cobalt construction. It is designed for general-purpose drilling in industrial manufacturing environments.
Where to buy OSG drill bits worldwide?
You can source OSG drill bits like the 10421905 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive genuine OSG tooling for your operations.
How to select the right OSG screw machine drill bit for your application?
Select based on hole diameter, material hardness, and machine type. For steel and alloys, choose TiN-coated cobalt bits like the OSG 10421905. Match the drill point angle (130°) to your workpiece material. Consult OSG's technical data for optimal speeds and feeds.
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Common applications for OSGOSG Products
3G Electric supplies OSG general purpose cobalt screw-machine length drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









