Danyang Boyu Tools Co., Ltd.

masonry drill bits set

masonry drill bits set
Product Detailed

masonry drill bits set
1.chrome plated
2.economical hign speed steel bit for general drilling

  masonry drill bits set

 Size: (1.0 to 10.0) x 0.5mm
 Finish: black, tin-coated, chrome plated, nickle plated etc
 Process: roll forged, edge ground or fully ground
 Packing: plastic box, step plastic box, metal box or round plastic box

*hot fully ground flute with special heat treatment

*black oxide finish for greater resistance to wear

*for drilling in steel,cast steel, malleable iron, sintered metal,non-femous metal

 



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