Description:
8pcs 1/2 Inch Straight Shank Twist Drill Bit Set HSS Twist Drill Bits from 9/16 Inch to 1 Inch

Specification:

Item Name	Twist Drill Bit
Material	HSS 4241 / High Speed Steel
Surface Treatment	Nitrogen Coated
Shank Size	1/2" Straight Shank
Shank Diameter	12.7mm/0.5"
Shank Length	55mm/2.17"
Flute Length	93mm/3.66''
Total Length	148mm/5.83"
Drilling Diameter	9/16"(14.2mm)、 5/8"(15.8mm)、 11/16"(17.4mm)、 3/4"(19mm)、 13/16"(20.6mm)、 7/8"(22.2mm)、 15/16"(23.8mm)、 1"(25.4mm)
Quantity	8pcs

 Features:
Using high-quality high-speed steel、 through special treatment、 processed iron、 steel、 plastic、 wood、copper、Aluminum and other metal materials.Durable、 mainly used for bore machining.
 Package Included:
8 x Twist Drill Bit

More Details: