small drill bit with 100% virgin material and long exporting experience
USD $50 - $65 /Piece
Min.Order:20 Pieces
Zhuzhou Tongyi Industry Co., Ltd.
small drill bit with 100% raw material and long exportin experience
Usages:Stone Cutting, Drilling, Abrasive and Carving, Engineering Material, Optical Glass Cutting, Lab Use Super-thin Saw Blade, Semiconductor Cutting, Arts Cutting, Fire-Retardant, Porcelain, Plastics, Laminate Plate
Recommended grade: YG8C, YG11C, YK20, YK25 and so on
We can make suggestions of suitable grades for customers’ usage.
Types:Q0610.Q0812,Q0914.Q1221.Q1320.Q1422,Q2132,Z0812,Z0913,Z1016,Z1219,Z1424,Z1117C,Z1118A with standard sizes and so on
We can meet per customer’s requirements,according to the drawings or pictures you offer.
Advantages of our company:
1.With more than 12 years production experience
2.100% raw material and recycle material
3.Hardness, toughness, wear resistance, durability
4.Strict quality control and assurance system
5.Reasonable price
6.OEM&ODM service
7.ISO9001: 2008 certificate
8.Feedback within 24 hours
9.100% inspected before shipment
10.Fast delivery
Advantage in production
1.Well equipped with the advanced hard-alloy production machines in China.
2.Well-established technical quality control system.
3.Capable of technique exploration and products innovation.
Grade and corresponding performance
Grade | Equal to ISO Category Number | Performance | usages | ||
Density | Bend Strength | Hardness | |||
G/Cm3 | N/mm2 | HRA | |||
YK25 | K40 | 14-.3-14.6 | ≥ 2100 | ≥ 86.5 | Qualified for molding the drills for heavy-duty rock drill, detachable bits used for deep hole drilling, rock drill trolley, etc. |
YG8C | K20 | 14.7-14.8 | > 2200 | > 88.5 | |
YG11C | K40 | 14.0--14.4 | ≥ 2060 | ≥ 86.0 | |
YG15 | K40 | 13.9-14.1 | ≥ 2020 | ≥ 86.5 | Qualified for hard rock drilling, steel bars with high compression ratios, pipe drawing, punching tools, core cabinet of powder metallurgy automatic molders, etc. |
YG6 | K20 | 14.7-15.1 | ≥1670 | ≥89.5 | Qualified for finish machining and semi-finish machining for the cast iron, non-ferrous metal, alloy and unalloyed materials. Also qualified for wire drawing for the steel and non-ferrous metal, electric drill for geology use and steel drill etc. |
YG8 | K20-K30 | 14.6-14.9 | ≥1840 | ≥89 | Qualified for rough machining of cast iron, non-ferrous metal, nonmetal materials, drawing of steel, non-ferrous metal and pipes, various drills for geology use, tools for machine manufacture and wearing parts. |
YG20 |
| 13.4-14.8 | ≥ 2480 | ≥ 83.5 | Qualified for making dies with low impact such as punching watch parts, battery shells, small screw caps, etc. |
YG20C |
| 13.4-14.8 | ≥ 2480 | ≥ 82.5 | Qualified for making moulds of cold heading, cold stamping and cold pressing used for manufacturing standard parts, bearings, etc. |
If you are interested in our products,pls kindly contact us,thank you !