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Brand Name : Starry
Model Number : 7.5mm
Certification : ISO9000
Place of Origin : JIANG SU CHINA
MOQ : 300Pcs
Payment Terms : T/T, L/C
Supply Ability : 3000000pcs per mouth
Delivery Time : 30-45days
Packaging Details : plastic box,pvc bags,Single piece with blister card package
Product name : hss drill bits metal
material : M35
Standard : DIN 338
Process : Full ground
Hardness : HRC 61 - 66
Surface finished : Amber
Application : Stainless Steel
Description:
Manufactured from M35 steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67 with 5% Cobalt, for much faster cutting and extra longer life span, with up to twelve times when compared with an average HSS drill bit. No center punch is needed—the 135° Quick-Cut points are self-centering and penetrate quickly with less pressure. Will not "walk" or "wander" Extremely heat resistant; must be used and operated at 1500 RPM or greater for maximum efficiency. Straight shank allows for firmly holding and accurate centering,
Detail:
Item Name: Metal Amber M35 Full Ground High Speed Steel Twist Drill Bit |
|
Material | M35 |
Shank | Straight shank |
Process | Full ground |
Surface finished | Amber |
Hardness | HRC 61 - 66 |
Color | cooper-colored |
Size | 7.5mm |
Flute Type
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|
Total Length |
125mm
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Flute Length |
81mm
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Usage | Aluminum, Stainless Steel |
Customize | Accepted |
M35 Drill bits Size List :
Size | Limit | Overall Len | Thread Len | Size Code |
M1.6x0.35 | 6h | 40 | 8 | 1 |
M1.7x0.35 | 6h | 40 | 8 | 2 |
M2.2x0.45 | 6h | 50 | 9 | 5 |
M2.6x0.45 | 6h | 50 | 9 | 7 |
M3x0.5 | 6h | 56 | 11 | 9 |
M3.5x0.6 | 6h | 56 | 13 | 10 |
M4x0.7 | 6h | 63 | 13 | 11 |
M4.5x0.75 | 6h | 70 | 16 | 12 |
M6x1 | 6h | 80 | 19 | 14 |
M7x1 | 6h | 80 | 19 | 15 |
hss drill bits metal Application
It is often used in power-saw blades and drill bits. It is superior to the older high-carbon steel tools used
extensively through the 1940s in that it can withstand higher temperatures without losing its temper (hardness).
This property allows HSS to cut faster than high carbon steel, hence the name high-speed steel. At room temperature,
in their generally recommended heat treatment, HSS grades generally display high hardness (above Rockwell hardness 60) and abrasion resistance (generally linked to tungsten and vanadium content often used in HSS) compared with common carbon and tool steels.
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Metal Amber M35 Ground Steel Twist HSS Drill Bits Images |