Product Name |
Countersink Drill Bits For Wood Screw |
Material |
High Speed Steel ,Carbon Steel with Heat Treatment is available |
Process |
Fully Ground ,Rolled ,Edge Ground are available |
Shank |
Hex Shank, Reduced Shank,Round Shank are available) |
Package |
One Piece in One PVC Pouch or PVC Skin Card or Paper Sandwich or PVC Double Blister or PVC Tube |
Features |
Tapered drill with widened flutes for drilling fast,clean pilot holes. Counter bore attaches to flats on shank with two hex screws for a secure fit, and can be adjusted for controlled pilot hole depth. |
Screw Size |
Bit Diameter |
Counter Bore Size |
Plug Size |
Shank Size |
4# |
7/64" |
1/4" |
1/4" |
1/4"" |
6# |
9/64" |
5/16" |
5/16" |
1/4 |
8# |
11/64" |
3/8" |
3/8" |
1/4 |
10# |
3/16" |
7/16" |
7/16" |
1/4 |
12# |
7/32" |
7/16" |
7/16" |
1/4 |
14# |
1/4" |
7/16" |
7/16" |
1/4 |
Diameter(mm) |
Flute Length(mm) |
Overall Length(mm) |
Shank diameter(mm) |
Handle long(mm) |
2.00 |
27.00 |
75.00 |
6.35 |
40.00 |
2.50 |
27.00 |
75.00 |
6.35 |
40.00 |
3.00 |
27.00 |
75.00 |
6.35 |
40.00 |
3.50 |
32.00 |
80.00 |
6.35 |
40.00 |
4.00 |
42.00 |
90.00 |
6.35 |
40.00 |
4.50 |
42.00 |
90.00 |
6.35 |
40.00 |
5.00 |
42.00 |
90.00 |
6.35 |
40.00 |
5.50 |
42.00 |
90.00 |
6.35 |
40.00 |
6.00 |
42.00 |
90.00 |
6.35 |
40.00 |
6.50 |
52.00 |
100.00 |
6.35 |
40.00 |
1/8 |
27.00 |
75.00 |
6.35 |
40.00 |
5/32 |
42.00 |
90.00 |
6.35 |
40.00 |
3/16 |
42.00 |
90.00 |
6.35 |
40.00 |
1/4 |
52.00 |
100.00 |
6.35 |
40.00 |
-We have larger warehouse to shock products for delivery on time.
-We have professional sale and technology team to serve our customers to ensure your shopping experience
-Stable quality and widely use for hole drilling in hard material;
-Because our is factory,we can supply competitive price.
-The samples are free,freight is collected.If we can have your order ,we will decrease the freight cost from our first order.
Shipping: Express delivery, air shipping, sea shipping are available for your request. Usual delivery time is 5-10days after receiving the advance payment; For the customized product, 15-30 days after receiving the advance payment.
Packing: We also supply single pvc bag,paper bag,colored plastic square box,transparent plastic box,skin card,sandwich and so on packages with size, logo,brand and other information.
Q: Are you professional manufacturer of HSS twist drill bits?
A: Yes,JIANGSU HAOKE MATERIAL TECH CO.,LTD is a professional factory that main products is HSS TWIST DRIL BITS.Following took a few photos of our workshop production and warehouse.
Q: Is OEM available?
A: Yes, OEM and customization are available. Graved logo marker,Laser logo marker,, customized packing. Printed Inner box, Carton box.
Q: Are samples available?
A: Yes, you can ask some samples for testing after confirming our prices, but please pay the sample and freight fee, the sample fee will be returned to you after you making official order.
Q: What is your payment terms?
A: T/T,L/C,D/A,D/P,Paypal,Western Union,for different circumstances.
Q: What's your delivery way?
A: Express delivery, air shipping, sea shipping are available for your request.
+86 15252968666