OSG Screw Machine Drill Bit: 5/16", 130° R-Thinning Point
SKU 3G-OTH-409476
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Frequently Asked Questions
What is the OSG 10312505 screw machine drill bit used for?
The OSG 10312505 is a general-purpose cobalt screw-machine length drill bit designed for high-speed drilling in tough materials. Its 130° R-thinning point reduces thrust and improves chip evacuation, making it suitable for automated machining operations in industries like automotive and aerospace.
What are the specifications of the OSG 10312505 drill bit?
The OSG 10312505 is a 5/16" (0.3125 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 ferrous and non-ferrous materials, offering enhanced wear resistance and heat dissipation.
Where to buy the OSG 10312505 drill bit worldwide?
3G Electric supplies the OSG 10312505 drill bit 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 time on this TiN-coated cobalt bit.
How to select the correct OSG screw machine drill bit for my application?
Select the OSG 10312505 for drilling holes up to 5/16" diameter in hardened steels or stainless alloys. The TiN coating reduces friction and extends tool life. For softer materials, consider uncoated HSS bits. Always match the drill point angle (130°) to your material hardness for optimal performance.
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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.










