Features Specifications: DIN338 HSS Twist Drill Bits
Available sizes: 1.0mm - 20.0mm
Angle point: 118 or 135
Process: Roll forged, half ground, fully ground
Finish: Black oxide, polished, tin coated and rainbow
Twist drills are rotary cutting tools that normally have two cutting edges and two flutes which are grooves formed in the body to provide cutting lips, to permit the removal of chips and to allow coolant or cutting fluid to reach the cutting action. ....
HSS Both-Sided Twist Drill Bit
Detailed Product Description
HSS (High Speed Steel)
Double-sided drill bit is used for drilling metal and stainless steel.
Widely used in construction.
Packing: PVC bag or tub
Supply Ability: 500,000pcs....
We produce all kinds of hss twist drill bits,
It includs by standard:
1) DIN338, DIN1897, DIN340, ISO235, ANSI B94 11M
DIN345, DIN1870, ANSI B94.11M
It includs by material:
1) hss 4241#, hss 4341#, hss93....
The whole tool adopts high-quality high-speed steel, which has got balanced hardening treatment and appropriate angle design.
1180 or 1350 split point angle, quickly lead in screw groove reduce resistance and improve corking efficiency.