1pc HSS Step Cone Drill Bit 1/4" Hex Shank Titanium Coated Drilling Tool For Metal Wod Power 3-13mm | Инструменты

1pc HSS Step Cone Drill Bit 1/4" Hex Shank Titanium Coated Drilling Tool For Metal Wod Power 3-13mm |

Specification: 

• Brand new

• Type: drill bit

• Material: HSS 4241

• Surface: titanium coated

• Color: golden, as picture shows

• Quantity: 1pc

• Shank Size: 1/4"

• 11 Steps: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13mm

• High speed steel, used in hardness under 25 ° workpiece, the plate thickness under 4 mm, such as carbon steel plate, sheet iron, insulation boards, wood, etc.

• When inject cold water while working, can effectively extend the service life of the drill bit.