Terratek 99pc High Speed Titanium Nitrade Twist Drill Bit Set

PREMIUM MATERIAL: Manufactured from 4241 high speed steel for strength and durability.

STORAGE: Supplied in a plastic storage box for easy storage and transportation

Widely USED: The 135° fast cutting point is automatically cantered and penetrates quickly with less pressure, The drill kit meets all your requirements, including all common size specifications for metal, wood, plastic

PROCESS TREATMENT: Titanium coated surface prevent rusting, which increase the hardness of the drill bit and reduces heat build-up, make the twist drill bit more wear-resisting for longer life.

Size includes: 1.5mm 16 piece，2mm 16-piece，2.5mm 15 piece, 3mm 10-piece，3.2mm 10-piece，3.5mm 8 piece，4mm 8 piece，4.5mm 3 piece，5mm 3 piece，5.5mm 2 piece，6mm 2 piece，6.5mm 2piece，8mm 2 piece，10mm 2 piece