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Address: FeiDa indutrial Park,Hou Xiang Town,DanYang City,Jiang Su Province,China.
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7.5mm Amber DIN 338 fully ground high Speed Steel Step Drill Bit
Description:
COBALT STEEL - Manufactured from M35 grade cobalt steel, with molybdenum and cobalt added to creates a hardened alloy,
measuring Rockwell hardness up to 67, for much faster cutting and
extra longer life span, ideal for repeated drilling in metalworking
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 tha
t 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.
Detail:
Item Name: 7.5mm Amber DIN 338 fully ground high Speed Steel Step Drill Bit | |
| Material | M35 |
| Shank | Hex Shank |
| Process | Full ground |
| Surface finished |
Amber |
| Hardness | 65-67 HRC |
| Color | cooper-colored |
| Size | 7.5mm |
Flute Type
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| Total Length | 125mm
|
| Flute Length | 81mm
|
| Usage | steel, Drilling holes in metal |
| 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 | 7h | 40 | 8 | 2 |
| M1.8x0.35 | 8h | 40 | 8 | 3 |
| M2x0.4 | 6h | 45 | 9 | 4 |
| M2.2x0.45 | 6h | 50 | 9 | 5 |
| M2.6x0.45 | 6h | 50 | 9 | 7 |
HSS M35 Cobalt Parallel Shank Drill Bits Application
fit for standard drill chucks and regular round collet chucks
Manufactured with all kinds of drill bit for metal,
such as HSS Twist Drill, HSS Center Drill Bit, HSS Step Drill Bits,
Reduced Shank Drill Bit, Taper Shank Drill Bits, and etc.
Made into HSS Twist Drill Bits; HSS Step Drill Bit; Taper Shank Drill Bits; Reduced Shank Drill Bits; Bi-metal Hole Saw
