Viking Drill and Tool St. Paul MN
America's Finest High-Speed Steel Cutting Tools™

Proudly Manufactured in the USA
 HOME >> Type 260-AL Left Hand Screw Machine / Square Extractor Set

Type 260-AL Left Hand Screw Machine

Type 260-AL Left Hand Screw Machine 3–Flats on Shank
Type 260-AL Left Hand Screw Machine 135° Split Point


Ideal in tight areas for removing broken studs and fasteners without extractor.
Low temperature stress relieving process which improves lubricity.
— Left–hand Screw machine drills can be used in set-ups where spindle
    clearance is limited.
3–Flats on shank give positive chuck–grip (3/16" & Larger).
— Screw machine drills are popular in the automotive and construction industries.
Proudly manufactured in the USA.

Adobe Acrobat Logo PDF — Left–Hand Screw Machine Length 135° Split Point


Type 421-USA Square Style Extractor

Type 421-USA Square Style Forged Hi–Carbon Steel
Type 421-USA Square Style Forged Hi–Carbon Steel


— The square shape of these extractors gives the tools the ability to remove broken bolts, screws and pipes with minimum deformation of the broken part.
These extractors will not chew up OR expand the object being removed.
To move the broken threaded part: Drill a hole in the end of the broken part (left hand spiral heavy duty drills are recommended for this drilling operation), insert extractor, then turn counter–clockwise using a wrench on the exposed end of the extractor
Proudly manufactured in the USA.

Adobe Acrobat Logo PDF — Type 421-USA Square Style Forged Hi–Carbon Steel


Hardness, Strength and Toughness:
The key difference between hardness and toughness is that these two properties of materials have an inverse relationship. For a particular solid material; as hardness increases, toughness decreases. Hardness is a measure of a material’s resistance to permanent deformation. Toughness is a measure of how much deformation a solid material can undergo before fracturing. Strength is how much force needs to be applied before the material deforms.
Silly putty has low strength but steel has high strength and is extremely difficult to pull apart.

10pc. Drill & Square Extractor Sets

13pc High Helix Flutes Jobber Drill Set
BR-10SQ Drill & Square Extractor Set
Sizes include: EX 1, 2, 3, 4, 5 + 3/32", 1/8", 3/16", 1/4", 5/16"
— Hard plastic secure, slide-lock.
Proudly manufactured in the USA.

BR-10SQX Drill & Square Extractor Set
Sizes include: EX 1, 2, 3, 4, 5 + 1/8", 3/16", 1/4", 5/16", 3/8"
— Hard plastic secure, slide-lock.
Proudly manufactured in the USA.

Adobe Acrobat Logo PDF — 10pc. Drill & Square Extractor Set