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Magafor 434 Series Cobalt Steel Countersink, Uncoated (Bright) Finish, 3 Flute, 82 Degrees Cutting Angle, 1/4" Shank Dia., 1/2" Body Dia.

5.0 out of 5 stars 1 customer review

Price: $33.19 & FREE Shipping on orders over $49. Details
Only 4 left in stock (more on the way).
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Specifications for this item
Brand Name Magafor
Part Number 4341270
Material Type Cobalt Steel
Finish Types Uncoated (Bright)
Number of Items 1
Cutting Angle 82  Degrees
Cutting Diameter 0.5  inches
Flute Type Spiral
Manufacturer Series Number 434
Number of Flutes 3
Outside Diameter 0.5  inches
Overall Length 50  mm
Shank Type Round
Shank Width 1/4  inches
Size 1/2 in
System of Measurement Inch
UNSPSC Code 27112812

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Product Features

  • Creates an 82-degree countersink that accepts a flat-head fastener so it sits flush with the surface
  • Three flutes provide better chip clearance than four flutes to prevent clogging
  • Cobalt steel provides extended tool life compared to high-speed steel when cutting hard materials
  • Uncoated (bright) finish has no additional surface treatment or coating
  • Single-ended tool has a round shank that accommodates most drill chucks

Product Description

The Magafor 434 series cobalt steel countersink with uncoated (bright) finish creates an 82-degree conical opening that accepts a flat-head fastener so it sits flush with the surface. The three flutes clear chips away to prevent clogging. Cobalt steel provides extended tool life compared to high-speed steel when cutting hard materials, and maintains the tool's toughness and hardness in high drilling temperatures. The uncoated finish has no additional surface treatment or coating. The tool has a single cutting end and a round shank that accommodates most drill chucks.

Countersinks are fluted cutting tools that cut a conical or gradually widened opening for a hole into the surface of a workpiece, which provides a seat for a screw or rivet head. They are also used to create center holes for a machine center, deburr surfaces, and enlarging existing holes. The countersink's body diameter should be the same size or larger than what is being countersunk.

Magafor manufactures precision cutting tools, including counterbores, countersinks, deburring tools, and end mills. The company, founded in 1937, is headquartered in Fontenay-sous-Bois, France.


Product Details

  • Shipping Weight: 2.4 ounces (View shipping rates and policies)
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B003EIKRTE
  • Average Customer Review: 5.0 out of 5 stars  See all reviews (1 customer review)
  • Amazon Best Sellers Rank: #335,927 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Top Customer Reviews

By George Berger on September 10, 2015
Verified Purchase
Works like a charm! Smooth, quick countersinks form Al all the way to SS! The low flute height allowed me to get in some tight spaces. Chip removal was quick with no binding or chatter. I've used a 1/4" hex shank adapter with this to allow me to quick change it in and out on my electric screw gun.
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