Shanghai Fengyue Tools Industrial Co., Ltd. [China]

Detailed Product Description

MASONRY DRILL BITS-DOUBLE FAST SPIRAL
This drill bit is machined from high carbon steel. 
Carbide tipped cutting edge 
Double fast spiral flute for fast speed drilling. 
For rotary or roto-percussion drilling. 
For drilling masonry, stone, concrete, plaster and drywell. 
Dia. 3-13mm &1/8' to 1/2'. 
Length:  200, 300, 400 mm/8',12',16' available.
Surface finished: sandblast, zi coated, Ni caoted,Cr coated....