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" and 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

 


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 Set

13pc High Helix Flutes Jobber Drill Set
10pc. Drill & Square Extractor Set
Sizes include: EX 1, 2, 3, 4, 5 + 3/32", 1/8", 3/16", 1/4", 5/16"
— Secure, snap-lock steel cover.
Proudly manufactured in the USA.

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