Center drill,drill bits Material: solide carbide, hss, hss-co Standard or as per requirement Technic:Fully Ground Brand: LD

Center drill bit set

1) Super high hardness, extreme smooth coating surface.

2) Excellent performance in some sticky metals cutting (anti-sticky)

3) Longer tool life.

4) Work piece material: cast iron, carbon steel, alloy steel, hardened steel, quenched steel, non-ferrous metals.

5) Good for maching up to HRC60 degree.

6) Less cutting resistance.

Standard Drill

Dia.	Overall Length	Flute Length
mm	mm	mm
3.0	50	12
4.0	50	15
5.0	50	18
6.0	60	20
8.0	70	25
10.0	80	30
12.0	85	35
14.0	90	38
16.0	100	40
18.0	100	45
20.0	120	50
22.0	130	55

tungsten carbide twist drill bits