Factory wholesale 4 Inch Step Drill Bit - 5D Carbide Coolant Deep Hole Drill Bits – MSK

https://detail.1688.com/offer/630869761899.html?spm=a26352.15231885.offerlist.202.6fc11e620zjaWq
 
15D inner cooling deep hole drill is sharp and firm, fast milling.
 
This coolant deep hole drill bits is not easy to wear, increase the service life of the drill. 0.6 micron grain tungsten steel cemented carbide, using micro grain tungsten steel base material, has higher strength, is not easy to wear, and belongs to the exclusive drill bit for high hardness and high cutting applications.
 

• Brand	MSK	Product Name	HRC15D Carbide Coolant Deep Hole Drill Bits
  Origin	Changzhou	HRC	15D
  Application	Stainless steel, Cast iron, copper, graphite, plastic, composite materials
  Applicable machine	CNC machining centers, engraving machines and other high-speed machines

• Flute Diameter d(mm)	Shank Diameter D(mm)	Total Length L(mm)	Flute length l (mm)
  2.5	3.0	98	50
  2.6		108	60
  2.7
  2.8
  2.9
  3.0
  3.1	4.0	118	70
  3.2
  3.3
  3.4
  3.5
  3.6		128	80
  3.7
  3.8
  3.9
  4.0
  4.1	5.0	140	90
  4.2
  4.3
  4.4
  4.5
  4.6		150	100
  4.7
  4.8
  4.9
  5.0
  5.1	6.0	162	110
  5.2
  5.3
  5.4
  5.5
  5.6		172	120
  5.7
  5.8
  5.9
  6.0
  6.1	7.0	183	130
  6.2
  6.3
  6.4
  6.5
  6.6		193	140
  6.7
  6.8
  6.9
  7.0
  7.1	8.0	204	150
  7.2
  7.3
  7.4
  7.5
  7.6		214	160
  7.7
  7.8
  7.9
  8.0
  8.5	9.0	225	170
  9.0		235	180
  9.5	10.0	246	190
  10.0		256	200
  10.5	11.0	271	210
  11.0		281	220
  11.5	12.0	292	230
  12.0		302	240
  12.5	13.0	313	250
  13.0		323	260
  13.5	14.0	334	270
  14.0		344	280

 
Feature:

Quality assurance
Large chip removal
Universal chamfered round shank
Tungsten carbide
TIAN coating on the blade
Fully sharpened
 
 
Advantage:
Large chip removal, changing core, more stable. The large core diameter is ensured under the condition of cutting capacity, which greatly enhances the rigidity and shock resistance of the drill bit, and reduces the disconnection.
 
Large chip removal rate, exquisite spiral groove, avoid sticking of drill, greatly improve production efficiency
 
The universal chamfered round shank has good compatibility. Enhance the anti-vibration and cutting speed of the drill bit, and the clamping will be tighter without slipping
 
 
Use:
Aviation Manufacturing
Machine Production
Car manufacturer
Mold making
Electrical Manufacturing
Lathe processing