HSS Industrial 3 Flutes Countersink Drill Bit Set

Product Description

OUR FACTORY
1) We're a direct manufacturer and 100% export worldwide (USA, Israel, Jordan, Iran, Thailand, Duabai, South Africa, Kenya, Egypt, Australia, UK, Spain, Brazil, etc)
2) We have around 15 years of producing experience.
3) Our drill product: HSS drill bits, masonry drill, SDS drill, glass & tile drill, step drill, wood flat drill, wood auger bit, wood brad drill, center drill, left hand drill, drill set etc.4) Above 95% customers will place a formal order after testing the samples.

PRODUCT CATALOGS

HSS COUNTERSINK 

A countersink is a conical hole cut into a manufactured object, or the cutter used to cut such a hole.
A common use is to allow the head of a countersunk bolt or screw, when placed in the hole, to sit flush with or below the surface of the surrounding material (by comparison, a counterbore makes a flat-bottomed hole that might be used with a socket-head screw).
 A countersink may also be used to remove the burr left from a drilling or tapping operation thereby improving the finish of the product and removing any hazardous sharp edges.

Fetures of HSS countersink
1. Ideal for chatter-free and burr-free work on sheet metal, nonferrous metal, cast iron, light metals;
2. It's designed for fast shearing and chatterless cuts;
3. It's with an exceptionally fine finish and can be run at maximum speed;
4. The cutting edges quickly center in hole and produce a smaller chip load for chatterless machining;

Specification of HSS Countersink
* 60 degrees, grade 75, 82 degrees and 120 degrees are available.
* 3 ends cutting
* Best result at low cutting speed.
* Speed and precision of the hob, removing burrs and chamfer in any materialesincluding iron, steel, plastic or wood.
* M35 % HSSCo5 (HSS-E) available to specified requirements
* Surface finish: white, black, titanium coated and aluminum Nitride coated are
* Packaging: Individual packing in plastic or plastic blister 
* Countersink set

PARAMETER
 

Product	Countersink,Countersink Drill Bit
Material	HSS,HSS Al,Carbide etc.
Size	6mm-60mm,or can be customized
Degree	60°, 90°,120°
Process	Fully ground
Flutes	1,3,4,6
Shank	Straight,Tapered
Surface color	Bright finish, black oxide, tin-coated
Usage	For drilling metal, aluminum sheet, stainless steel, hard wood etc.
Customized	Availiable

 

Fetures of HSS countersink

1. Ideal for chatter-free and burr-free work on sheet metal, nonferrous metal, cast iron, light metals;
2. It's designed for fast shearing and chatterless cuts;
3. It's with an exceptionally fine finish and can be run at maximum speed;
4. The cutting edges quickly center in hole and produce a smaller chip load for chatterless machining;


Specification of HSS Countersink

* 60 degrees, grade 75, 82 degrees and 120 degrees are available.
* 3 ends cutting
* Best result at low cutting speed.
* Speed and precision of the hob, removing burrs and chamfer in any materials including iron, steel, plastic or wood.
* M35 % HSSCo5 (HSS-E) available to specified requirements
* Surface finish: white, black, titanium coated and aluminum Nitride coated are
* Packaging: Individual packing in plastic or plastic blister 
* Countersink set

 

Size	Allover L.	Shank Dia.
4.3	40mm	4.0mm
4.8	40mm	4.0mm
5.0	40mm	4.0mm
5.3	40mm	4.0mm
5.8	45mm	5.0mm
6.0	45mm	5.0mm
6.3	45mm	5.0mm
7.0	50mm	6.0mm
7.3	50mm	6.0mm
8.0	50mm	6.0mm
8.3	50mm	6.0mm
9.4	50mm	6.0mm
10.0	50mm	6.0mm
10.4	50mm	6.0mm
11.5	56mm	8.0mm
12.4	56mm	8.0mm
13.4	56mm	8.0mm
15.0	60mm	10.0mm
16.5	60mm	10.0mm
19.0	63mm	10.0mm
20.5	63mm	10.0mm
23.0	67mm	10.0mm
25.0	67mm	10.0mm
26.0	71mm	10.0mm
28.0	71mm	12.0mm
30.0	71mm	12.0mm
31.0	71mm	12.0mm
40.0	80mm	15.0mm

PACKING INFORMATION
 

Plastic pipe packing	Metal displaybox packing
Plastic tube packing	Plastic displaybox packing
1pc / PVC bag,then 1pc / inner paper box	Grey metal displaybox packing
Metal box for drill bits set packing	Wooden box for drill set packing
5/10 pieces packind in PVC bag, then in white paper box, then in carton

WIDELY USED
Household, Industrial Use


SHIPPING
 

1. TNT/FedEx/DHL/UPS for samples or under 45KG weight goods, Door to Door.
2. By Air or by Sea for batch goods, from airport(seaport) to airport(seaport).
3. Customers specifying freight forwarders or not.
4. Production Time: 3- 7 days for samples; 2-3.5 weeks for batch goods
 

OUR CUSTOMERS PRAISE

More information about our products, welcome to visit :http://damingtools.en.made-in-china.com/