Heyiarbeit 6pcs 4.2mm Twist Drill with Titanium Coated High Speed Steel Bit HSS CO for Steel,Copper,Aluminum Alloy

Heyiarbeit 4.2mm/0.16" Twist Drill with Titanium Coated High Speed Steel Bit How to Use Twist Drill Bits*Ensure the left and right cutting edges of the drill are symmetrical when drilling.*Observe the uniformity of the spark while drilling, adjust the pressure in time, and pay attention to the cooling of the bit.Note*Mini twist drill bit can NOT be used in the impact drill.Technical ParametersMaterial : High Speed Steel M35(HSS-M35) with COSurface Treatment : Titanium CoatedColor : ChampagneType : N Type 135 dgreeShank / Cutting Edge Diameter : 4.2mm/0.16"Total Length : 75mm/2.93"Package Content: 6 x Twist Drill Bit.

• [Material]- M35 HSS with CO,Titanium Coated with titanium coating for capability and durability.
• [Parameter]- Shank / Cutting Edge Diameter : 4.2mm/0.16" ;Total Length : 75mm/2.93".
• [Application]- Perfect for stainless steel, copper, aluminum alloy,as well suit for wood,plastic.Suitable for Home DIY, and General Building/Engineering Use.
• [Feature]- flutes form helps clear chips and debris away from the bit, decreasing friction and heat for a faster, cooler drilling process.
• [Package Content]- 6 x Twist Drill Bit.