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OSG #21 Screw-Machine Length Drill Bit - General Purpose Cobalt Screw-Machine Length Drill Bits
OSGGeneral Purpose Cobalt Screw-Machine Length Drill Bits

OSG #21 Screw-Machine Length Drill Bit

OSG General Purpose Cobalt Screw-Machine Length Drill Bits.

SKU 3G-OTH-409611

Brand
OSG
Item
#21 Screw-Machine Length Drill Bit
Part Number
10159005
Category
General Purpose Cobalt Screw-Machine Length Drill Bits
Available to Order
Also known as:10159005OSG
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Technical Specifications

OSG
Manufacturer Part Number
10159005

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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

OSG General Purpose Cobalt Screw-Machine Length Drill Bits.

Frequently Asked Questions

What is the OSG #21 screw machine drill bit used for?

The OSG #21 screw machine drill bit is designed for high-speed drilling in production environments. Its 130° split-point with R-thinning geometry reduces thrust and improves chip evacuation, making it ideal for general-purpose drilling in steel, stainless steel, and cast iron on CNC lathes and screw machines.

What are the specifications of the OSG 10159005 drill bit?

The OSG 10159005 is a #21 screw machine length drill bit with a 0.1590-inch diameter. It features a 130° R-thinning split point, TiN-coated cobalt construction for heat resistance and wear life. The manufacturer part number is 10159005, and it is designed for general-purpose drilling in ferrous materials.

Where to buy OSG drill bits worldwide?

3G Electric supplies OSG screw machine 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 OSG 10159005 #21 drill bit. We source and deliver to any country.

How to select the correct OSG screw machine drill bit size?

Select the OSG screw machine drill bit by matching the wire gauge number or decimal diameter to your hole size requirement. The #21 bit equals 0.1590 inches. For CNC applications, ensure the 130° split-point geometry matches your material hardness. OSG's TiN-coated cobalt bits suit general-purpose drilling in alloy steels.

Used in

Common applications for OSG
Aerospace — OSG STI taps for installing helical wire thread inserts in aluminum components
Automotive — OSG spiral-point taps for through-hole threading in engine blocks and transmission cases
General machining — OSG spiral-flute taps for blind-hole threading in steel and stainless steel parts
Heavy equipment repair — OSG thread-forming taps for creating threads in ductile iron and steel castings
Precision manufacturing — OSG solid carbide chucking reamers for finishing holes in hydraulic manifolds
Die and mold — OSG coolant-through solid carbide drills for deep-hole drilling in tool steels
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OSG 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.

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