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OSG Jobber Length Drill Bit: 5/16", 130° R-Thinning Point - General Purpose Cobalt Jobber-Length Drill Bits
OSGGeneral Purpose Cobalt Jobber-Length Drill Bits

OSG Jobber Length Drill Bit: 5/16", 130° R-Thinning Point

SKU 3G-OTH-198205

Brand
OSG
Item
Jobber Length Drill Bit: 5/16", 130° R-Thinning Point
Category
General Purpose Cobalt Jobber-Length Drill Bits
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Technical Specifications

OSG
Manufacturer Part Number
15312505
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the OSG Jobber Length Drill Bit 5/16" used for?

This OSG general-purpose cobalt jobber-length drill bit is used for drilling into hard materials such as stainless steel and alloy steels. Its 130° R-thinning point reduces thrust and improves chip evacuation, while the TiN coating extends tool life in production environments.

What are the specifications of the OSG 15312505 drill bit?

The OSG 15312505 is a 5/16" (0.3125 inch) jobber-length drill bit with a 130° R-thinning point. It features a TiN-coated cobalt construction for heat resistance and durability. This general-purpose bit is designed for high-speed drilling in ferrous metals.

Where to buy OSG drill bits in worldwide?

You can source OSG drill bits like the 15312505 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time on this item.

How to select the right OSG jobber drill bit for metal?

Select based on material hardness and hole depth. For stainless steel or hardened alloys, choose a TiN-coated cobalt bit like the OSG 15312505 with a 130° point. Ensure the diameter matches your requirement—5/16" for this model—and use proper cutting fluid to extend tool life.

Used in

Common applications for OSG
Automotive engine block production — OSG micro drill bits for oil gallery and coolant passage drilling in cast iron
Medical device manufacturing — OSG micro drill bits for drilling bone screw pilot holes in stainless steel implants
Aerospace component machining — OSG micro drill bits for fastener holes in titanium alloy structural parts
Mold and die making — OSG micro drill bits for cooling channel drilling in hardened tool steel (HRC 45-50)
Electronics enclosure fabrication — OSG micro drill bits for precision holes in aluminum alloy housings (with appropriate coating selection)
General engineering job shops — OSG micro drill bits for small-diameter hole drilling in mild steel and alloy steel parts

OSG Products

3G Electric supplies OSG general purpose cobalt jobber-length 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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