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Stepped Hole Cutter, 4pcs Titanium Coated, 4-12 4-20 4--32 4--39
Ground drill bit high speed steel (HSS) coated with titanium drill thinnest sheets without pre-drilling, no burrs, no sticking to the drill chips. Mainly used for machining non-ferrous metals, steel plates and thin plastics. It is used in blacharstwie, locksmith, etc. heating contractor industry.
made of HSS
ground
the drill is coated with titanium which will extend the life of six-fold compared to normal HSS drills
drill 4-12, 4-20, 4-32 in steps of 2 mm, the drill 4-39 in increments of 3 mm
Laser cut numbering allows you to control the size of the hole during drilling
cylindrical grip, particularly suitable for all drill chucks with quick-toothed ring
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