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Gun drills Highly productive gun drills

In the machining world, drilling depths of 10 times the diameter and deeper are classified as deep hole drilling operations, whereby smaller drilling depths can also be produced with the help of gun drills. The positive effects of the gun drilling process are good surface quality, optimized alignment accuracy and low concentricity deviation.

Gun drills from Sandvik Coromant are easy to use and require no pre-setting. Depending on the application, we offer several different types of gun drills  to fulfill your machining requirements.  

 

CoroDrill® 428.2 – Twin-lip gun drill

  • Hole diameter 6–26.50 mm (0.236 – 1.043 inch)
  • Hole depth ≤ 100 × diameter
  • Hole tolerance IT10
  • Higher feed in short chipping materials

 To order contact your local Sandvik Coromant representative

 

 

CoroDrill® 428.5 – Solid carbide single-lip gun drill

  • Diameter range 0.8–12 mm (0.031–0.472 inch)
  • Hole ≤ 300 mm
  • Hole tolerance IT8
  • Gives good drilling stability in medium to large batch sizes

 To order contact your local Sandvik Coromant representative

 

 

CoroDrill® 428.7 – High feed gun drill

  • Diameter range 3–12 mm (0.118–0.472 inch)
  • Hole ≤ 300 mm
  • Hole tolerance IT8
  • Highest productivity thanks to superior chip control

 To order contact your local Sandvik Coromant representative

 

CoroDrill® 428.9 – Single-lip gun drill - basic choice for drilling in all materials

  • Diameter range 1.90–40.50 mm (0.075–1.594 inch)
  • Hole depth ≤ 100 × diameter
  • Hole tolerance IT9
  • Our general choice for all materials

 To order contact your local Sandvik Coromant representative

 

CoroDrill® A428.91 – Brazed carbide single-lip gun drill

  • Stock standard inch programme
  • Diameter range 0.078–1.000 inch
  • Hole tolerance lT9
  • PVD TiAlN coating
  • Regrindable
  • Require no pre-setting
  • Optimized dimensions for the automotive industry

Assortment

 

 
 
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