Click for larger image and other views Image is representative of the product family. Select individual products in the table below for more specific images and product specifications

How can we improve our images or Product Specifications?

Sandvik Coromant SPG Carbide Turning Insert, GC3015 Grade, Multi-Layer Coating, Square Shape (Pack of 10)

Be the first to review this item

Product Specifications
Item Shape
Finish Types
Manufacturer Grade
Material Type
Style Name

This item is no longer available

This item is NOT eligible for "Free Standard Shipping on orders over $50.00" promotion. (Details)

  • Share
Currently showing 1-0 of 0
Part number ASIN

The Amazon Standard Item Number (ASIN) uniquely identifies
the item in the (and Amazon) catalog.


If an item is currently out of stock, but has an estimated lead time, you can place an order now and we will ship it as soon as it is available.
You can also order more than we currently have in stock.
Read more about back orders in our help section.

Currently showing 1-0 of 0

No results match your selection criteria.

Key Features

  • Designed for medium machining turning operations on cast iron in average to good machining conditions
  • GC3015 grade is an MTCVD coating of titanium carbonitride (TiCN), aluminum oxide, and titanium nitride (TiN) over carbide that provides wear resistance without limiting shock resistance
  • Square shape offers edge strength and is suitable for facing, interrupted cuts, and large lead angles
  • Medium machining (flat top) chipbreaker style helps prevent buildup of chips at a range of cutting depths and feed rates
  • Positive single-sided insert with 11-degree clearance angle for light cutting forces and side clearance

Product Description

The Sandvik Coromant SPG GC3015 carbide indexable turning insert with flat top chipbreaker has a square shape with an 11-degree clearance angle and provides wear resistance without limiting shock resistance for turning of cast iron in average to good machining conditions. The single-sided positive insert has four cutting edges. It has an 11-degree clearance angle for light cutting forces and side clearance, making it better than a negative insert for internal turning. It can also be used for facing, interrupted cuts, and large lead angles. The GC3015 grade is a combination of carbide and a coating of TiCN, aluminum oxide, and TiN applied through medium temperature chemical vapor deposition (MTCVD). It provides hardness for wear resistance without limiting shock resistance when turning cast iron in average to good machining conditions. MTCVD coatings are deposited at lower temperatures than CVD coatings. The lower temperatures eliminate cracks in the coating and provide increased toughness and smoothness without limiting wear resistance. The coating also provides shock resistance during interrupted cuts.

The SPG GC3015 has a flat top chipbreaker that is designed for medium machining cutting depths and feed rates for cast iron. Tolerance of distance from the outer edge of the inscribed circle to the point of the square is + or - 0.001” and tolerance of the theoretical diameter of the insert is + or - 0.001”. Insert thickness tolerance is + or - 0.005”. Different insert shapes and sizes may have different inscribed circle (iC) measurements, which are related to the insert’s range of cutting depths, speeds, lead angle, and feed rates. The inscribed circle is the largest circle that can be drawn within the edges of the insert shape. In general, as the insert size and iC become larger, the maximum cutting depth increases. The cutting depth influences the metal removal rate, number of cuts, chip evacuation, and power required when using the insert.

Indexable inserts are small cutting tools designed to remove material in external and internal cutting applications such as turning, milling, drilling, and grooving. They are held by an insert holder, have multiple cutting edges, and can be rotated when one edge wears down. Multiple inserts can be used to accomplish a variety of cuts in one operation. An insert is either positive or negative, which refers to the rake or clearance angle at which the insert removes material. Inserts are coded according to their specific cutting and application capability (e.g., VNMG 16 04 04-QM). Each part of the code represents details of the insert shape, nose angle, clearance angle, tolerance, size, geometry, grade, and chipbreaker style.

Sandvik Coromant produces tools for turning, milling, and drilling. Headquartered in Sweden and represented in 130 countries, the company manufactures tools used throughout the metalworking field, including the automotive and aerospace, die and mould, and general engineering industries. All Sandvik Coromant inserts meet ISO and ANSI standards.

Matching Inserts to Holders

These inserts are part of the Sandvik Coromant 111 Positive Insert family, which means they can be used in the CoroTurn 111 clamping system, which is an alternative to the CoroTurn 107 clamping system. The CoroTurn 111 system is used only for internal turning.

How can we improve our Product Description?

Customer Reviews

There are no customer reviews yet.

Be the first to review this item

Go to the HomePage

Order by Phone
M-F 8am-10pm ET, Sat-Sun 8am-5pm ET 800-220-4242

My Account| Returns| Help

Website Feedback| Contact Us| Sell on AmazonSupply| Become an Affiliate

Privacy Notice| Conditions of Use

Follow Us 

© 2015, Inc. and its affiliates.