Chinese Factory Drilling Holes HSS Step Drill with Spiral Flute

• Customized: Customized
• Length: Other
• Type: Core Drill Bit
• Material: High Speed Steel
• Usage: Metal Drilling
• Cutter Type: Core Drill Bit
• Model NO.: SSAS
• Treatment: All-Ground
• Performance: Better Endurance
• Package: Plastic Tube
• Transport Package: Single Packing with PVC Plastic Tube
• Specification: 98mm
• Trademark: CHTOOLS
• Origin: China(Mainland)Zhejiang
• HS Code: 8207509000
• Production Capacity: 100, 000PCS/Month

Product Description

1. Made of HSS, HSS-E and other materials, it is applicable to drilling of various materials, such as Steel,
Stainless Steel, Aluminum Alloy.
2. The chip flue includes straight flute and spiral flute.
3. Grinding with CNC precision tool grinder,with excellent quality of cutting edge.
4. TiN, TiAlN and other coating are available, can improve performance.

 

Production process

 

Chinese factory Drilling Holes HSS Step Drill

High quality HSS, fine heat treatment, hardness HRC63.5~HRC64.5
CNC grinding, excellent edge quality
The design of large arc flute ensures strength and sharpness
PVD coating is available, can improve performance
Various specifications can be customized according to customer requirements
 

TYPE	SIZE (Metric)	Overall Length
SSAS-101	4,6,8,10,12	65
SSAS-111	4,6,8,10,12	65
SSAS-102	4,5,6,7,8,9,10,11,12	65
SSAS-112	4,5,6,7,8,9,10,11,12	65
SSAS-103	4,6,8,10,12,14,16,18,20	75
SSAS-105	6,8,10,12,14,16,18,20,22,24,26,28,30	98
SSAS-104	6,9,13,16,19,21,23,26,29,32,35,38	100
SSAS-113	6,8,10,12,14,16,18	68
SSAS-106	7,10.5,12.5,14.5,16.5,18.5,20.5,23.5,25.5,30.5,32.5,38.5,40.5	115
SSAS-110	5,7,9,11,13,15,17,19,21,23,25	85
SSAS-114	4,6,8,10,12,14,16,18,20,22	81
SSAS-115	5,7.5,10,13,16,19,21,23,26,29,31,33,35	104