21PCS Cobalt Drill Bit Set M35 High Speed Steel Twist Jobber Length Fit for Metal Stainless Steel Cast Iron Woodworking Plastic with Metal Storage Case

• Customized: Non-Customized
• Standard: DIN, JIS, AISI, API
• Length: Jobber-length
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: 21 pcs
• Type: Twist Drill Bit
• Material: High Speed Steel
• Usage: Well Drilling, PCB Drilling, Metal Drilling
• Transport Package: Round Plastic Case
• Specification: 1-13mm*0.5mm
• Trademark: OEM
• Origin: Danyang Jiangsu
• HS Code: 8207509000
• Production Capacity: 500000PCS/Month
• Package Size: 17.00cm * 10.00cm * 3.00cm
• Package Gross Weight: 0.700kg

Product Description

21Pcs Cobalt Drill Bit Set M35 High Speed Steel Twist Jobber Length Fit for Metal Stainless Steel Cast Iron Woodworking Plastic with Metal Storage Case

 

Description:

• Size: 21Pcs HSS drill - 1/16 inch, 5/64 inch, 3/32 inch, 7/64 inch, 1/8 inch, 9/64 inch, 5/32 inch, 11/64 inch, 3/16 inch, 13/64 inch, 7/32 inch, 15/64 inch, 1/4 inch, 17/64 inch, 9/32 inch, 19/64 inch, 5/16 inch, 21/64 inch, 11/32 inch, 23/64 inch, 3/8 inch
• Material: HSS with 5% cobalt, durable, higher heat resistance and wear resistance, high-speed steel with cobalt is harder, suitable for drilling high hardness materials
• Characteristics: Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks, must be used and operated at proper rpms for maximum efficiency
• Design: 135 Degree split point tip & twist design, increases cutting speed with self-centering and prevents walking, clears chips and particles faster
• Use: M35 cobalt hss is more suitable for hardened material, particularly successful in cutting through hard metals such as stainless steel, cast iron, high temperature alloy

Specification of HSS Drill Bits:

1. Material and Hardness:

DESCRIPTION OF HSS	C	W	Mo	Cr	V	Co	Si	Mn	P	S
	%	%	%	%	%	%	%	%	%	%
W2MoCr4V(F4341)	0.95-1.05	1.7-2.4	0.8-1.2	3.8-4.4	0.8-1.2		1.0-1.4	0.2-0.4	<=0.03	<=0.03
W4Mo3Cr4V(4341)	0.88-0.98	3.5-4.5	2.5-3.5	3.8-4.4	1.2-1.8		0.5-1.2	0.2-0.4	<=0.03	<=0.03
W9Mo3Cr4V(9341)	0.77-0.87	8.5-9.5	2.7-3.3	3.8-4.4	1.3-1.7	-	0.2-0.4	0.2-0.4	<=0.03	<=0.03
W6Mo5Cr4V2(M2)	0.8-0.9	5.5-6.75	4.5-5.5	3.8-4.4	1.75-2.2	-	0.2-0.4	0.2-0.4	<=0.03	<=0.03
W6Mo5Cr4V2Co5(M35)	0.9-0.95	5.5-6.5	4.5-5.5	3.8-4.4	1.75-2.2	4.5-5.5	0.2-0.4	0.2-0.4	<=0.03	<=0.03
W2Mo9Cr4V2Co8(M42)	1.05-1.15	1.15-1.85	9.0-10.0	3.5-4.25	0.95-1.25	7.75-8.75	0.15-0.65	0.15-0.4	<=0.02	<=0.025

2. Size:

 

 

Size:1/16"-3/8"*1/64"

 

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.