Cobalt High Speed Steel HSS Step Drill Bit Set 5pcs With Aluminum Case

5pcs Hss Cobalt Multiple Hole 50 Sizes Step Drill Bit Set with Aluminum Case

Features:

1. Laser marking makes the size more clear;
2. High speed steel for longer service life;
3. 3-sided shank prevents slip in drill chuck;
4. Double cutting blades design enables a faster and smoother cutting;
5. X-type openings design to facilitate the removal of cutting waste when drilling;
6. Cobalt added reduces friction and lasts longer than those which does not contain cobalt bits;
7. The sharpness and titanium coating ensure easily cut through most sheet metal,plastic and some other materials with ease.

Note:

Check the concentricity of the spindle and spring chuck and the clamping force of spring chuck,
for the concentricity may cause the drill bit broken and make drill hole too large.

Specification

Size:
#1: 1/4" to 1-3/8" 10 Steps (1/4'', 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8")
#2: 3/16" to 7/8" 12 Steps (1/4'', 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8")
#3: 1/4" to 3/4'' 9 Steps (1/4'', 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4")
#4: 1/8" to 1/2" 13 Steps (1/8", 5/32", 3/16'', 7/32", 1/4'', 9/32", 5/16", 11/32", 3/8'', 13/32", 7/16'', 15/32", 1/2'')
#5: 3/16" to 1/2" 6 Steps (3/16'', 1/4'', 5/16", 3/8'', 7/16'', 1/2'')

Wide Applicatioins:

The sharpness and titanium coating ensure easily cut through most steel sheets,aluminum sheets,copper & plastic & wood board and many other types of sheet metal with ease

Delivery:

1. Delivered by Sea,Air,Express

2. 20-30Days after your deposite,as your order quantity.

Sample Policy:

1. We can provide samples for free if required.

2. Samples can be delivered about 7-10days.

Payment:

1. We can accept L/C,T/T,Western Union,Paypal.

2. 20%-30% payment in advance,the balance before shipment or against copy of B/L.