high quality HSS drill bit set 230pcs

Feature highlights：

high quality roll forged twist drill bits

Straight shank, titanium coated HSS drill bits set

Made from High Speed Steel

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specification

High quality HSS drill bit set 230pcs

ANSI B94.11M jobber length roll forged twist drill bits with titanium coated surface treatment, 135 degree point

Hot roll-forged flute with special heat treatment gives additional toughness with increased durablity of the drill bit

Ideal for drilling on mild steel, copper, aluminium, zinc alloy etc.

For use on Wood, Metal, Fiber Glass & Plastics (Not for use on Concrete / Masonry)

Titanium coated HSS for maximum durability & Lasts X6 more than onventional bits

All sizes are printed on tray to help keep the bits organized

includes heavy duty storage case

Drill bits made from high speed steel

Includes drill bit sizes from 1/16" up to 1/2" bits

high quality drill bit set 230pcs