6pcs/set Hss Hexagon Hex Metric Drill Bit Tap Countersink Screw Thread

Features: 

 Perfect for soft tapping metal, Aluminum, Wood, Plastic, etc.
 Multi-use drill tap deburr countersink hex bit kit. 
 The advantage is opening, tapping, chamfering. 
 Hole drilling, tapping and deburring/countersinking. 
 Decrease processing steps and save time, improve working efficiency.
 Back tapered beyond tap to prevent thread damage from over-drilling. 
  Its a spiral groove, within the processing thread, cutting up to exclude, and was curled applied internally threaded through holes.You can also insert the screws in the hole where have been drilled.

Specifications: 

Color:
See pic.
Type:
Tap Drill Bit 
DIY Supplies:
Metalworking 
Material:
High Speed Steel (HSS)
Chamfer Angle:
90° 
Shank:
1/4" (6.35mm) hex shank
Surface treatment:Titanium Coated 
Thread Diameter:M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5

Packing Included:

6pcs/set  x HSS Hexagon Hex Metric Drill Bit

NOTICE: 

Please add some oil before operate the tap, so the operation is smoother, and also to extend the life of the tap. 
Application:
High Speed Steel 4241 is suitable for wood, aluminum, iron and other lower hardness material, the material thickness is 3-5mm. Caution if you used it with hard metal! 

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