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Dormer Pramet A7238.0X79 (MID 7189824) is a spot weld drill with 8.00mm cutting diameter, 79mm overall length, and 24mm flute length. Made from Cobalt High Speed Steel (HSS-E) with Bronze coating and steam tempered finish. Standard spiral flute geometry, right-hand cutting, cylindrical shank, h8 tolerance. Designed for steel and cast steel (P material group).
MODEL 7189824
This product has a minimum order quantity of (10 minimum) This is the minimum order quantity available when purchasing this product.
$14.47 Each
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Spot-weld-drilling 180°
Basic Standard
DORMER
Coating
Bronze
Connection (shank) description
Cylindrical shank
Connection diameter - millimeter (DCON MS)
8
Cutting diameter - inch (DC)
0.315
Cutting diameter - millimeter (DC)
8
Cutting diameter tolerance class (TCDC)
h8
EDP number
47189824
Hand (Cutting direction)
Right
Length chip flute - inch (LCF)
0.9449
Length chip flute - millimeter (LCF)
24
Material
HSS-E
Material application
P - Steel and cast steel
MID number
7189824
Ordering code ANSI
A7238.0X79
Overall length - inch (OAL)
3.1102
Overall length - millimeter (OAL)
79
Spiral form
Standard Spiral
Surface treatement
Steam Tempered
Usable length (ULDR)
1
The A723 is a spot weld drill bit, so it is used to remove or “drill out” spot welded areas.
It has a lip and spur point which is specially designed for that task and is available in most common sizes, commonly for removing welds in a vehicle repair shop so the panels can be released and repaired.
It has a short flute length to make it more sturdy and less prone to shatter when being used in a hand held device whilst the bronze oxide finish makes sure workpiece material does not stick to the tool.
Manufactured from High Speed cobalt, the A723 can also be used for drilling hardened steel as a result of spot welding
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