Drill Bit Twist Chisels - China

• HSS Twist Drill Bit

• Solid Carbide Twist Drill Bit

• Carbide Tipped Twist Drill Bit

• SDS-Plus Hammer Drill Bit

• SDS-Max Hammer Drill Bit

• Masonry Drill Bit&Glass Tile Drill Bit

• Chisels

• Wood Working Drill Bit

twist drill bit

The twist drill is the most common type of drill.

The shank

of the drill is held by the machine tool, which in turn

imparts a rotary motion.

This shank may be straight or

tapered.

The body of the drill is typically made up of two

spiral grooves known as flutes, which are defined by a helix

angle that is generally about 30 degree but can vary

depending on the material properties of the workpiece.

The

point of the drill generally form a 118° angle and includes

a 10 degree clearance angle and chisel edge .

The chisel edge

is flat with web thickness of approximately 0.015 x drill

diameter.

This edge can cause problems in hole location

owing to its ability to "walk" on a surface before engaging

the workpiece.

In the case of brittle materials, drill point

angles of less than 118 are used, while ductile materials

use larger points angles and smaller clearance angles.

Company Contact:

• Posted By: HIGRED TOOLS CO.,LTD

• Phone: 8651236809449

• Address: NO.807-1-333HEFENG RD.HUAQIAO BIZ PARK, KUNSHAN , China

• Email:

• Website: https://www.higred.com

• Business Description: Higred Tools Co.
  
  was established in 1978 and began to make tools in
  
  1996 - By 15 years in cutting tools industry, we have beenthe
  
  professional cutting tools manufacturer and distributor among HSS
  
  Cutting Tools, Tungsten Carbide Cutting Tools and Electrical Power
  
  Tools.
  
  The cutting tools widely used by CNC, Magnetic Drill, Core Drill,
  
  Hammer Drill, Grinder, etc for metal Industrial, Factories, Bridges
  
  consructions, blacksmith, Building Constructions, Repairing and
  
  manufacturing shipping, Steel constructions, etc.
  
  Detailed contents are:
  
  HSS Cutting Tools: HSS Annular cutters, HSS twist drill bits, HSS end mills, HSS Burrs, HSS Reamers, HSS Counter Sinks, HSS Step Drills, HSS Slitting Saws, HSS taps, HSS dies etc;
  
  Tungsten Carbide Tools: TCT Annular Cutter, Carbide end mills, Carbide twist drills, Carbide Burrs, TCT Saw Blade, Electric hammer drill bits etc.
  
  Electrical Power Tools: Magnetic Drill, Drill Bit Sharpener, Penumatic Grinder, Core Drill, Electrical Hammer Drill, Grinder.
  
  etc.
  
  And now Higred Tools Co.
  
  is multi million dollar company with 3 factories, 25000 square meters, over 1200 workers can make 6 ~ 7 million sets of drills;10000 pcs of Burrs; 5000pcs of Annular Cutters per month.
  
  We have dozens sets of Walter, Matrol, Seiko etc CNC Machine for assurance of the High Quality of the precision tools.
  
  We have approvaled by ISO, TUV, CE.
  
  The products have entered EU, USA, South America, South Asia, etc with renowned reputation and regular cooperation of OEM or Higred ® Brand.