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25pcs HSS drill bit set in metal box

25pcs HSS drill bit set in metal box
Feature highlights:

Hot roll-forged flute HSS drill bit

half ground drill bit with sharp cutting edges

Drill bit made from high speed steel

25pcs HSS drill bit set in robust metal box from China manufacturer

Hot roll-forged flute drill bit with specaill heat treatment gives additional toughness with increased durability of the drill bit.

Polished flute and groud cutting edges for the most accurate hole dimensions and high concentricity.

Economical high speed steel drill bit for general drilling

The drill bit used in steel, cast steel, malleable iron, sintered metal, non-ferrous metal and plastic.

Specification: 1,1.5,2,2.5,3,3.5,4,4.5,5,5.5,6,6.5,7,7.5,8,8.5,9,9.5,10,10.5,11,11.5,12,12.5,13mm

Silver surface Hss drill bit packed in robut metal box with show window

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