Drag bit

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2020年12月14日

Step Drag Bits – 3 Wing – Box

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Sonic Bits







A drag bit is a series of blades which is designed for use in soft formations such as sand, clay, or some soft rock. All tungsten carbide tips are welded to the bit wing by a special process to ensure a strong bond that will not shear or break when drilling through hard formations, three or four wings drag bits are available with either stepped or chevron profiles.



Application: water well, Geothermal, Environmental, mining, exploration






Drag Bit Specifications
(Inches)(mm)(Inches)(mm)(Inches)(mm)
3 1/2"88.9 mm6 1/8"155.6mm8 7/8"225.4mm
3 5/8"92.1 mm6 1/4"158.8mm9"228.6mm
3 3/4"95.3 mm6 1/2"165.1mm9 1/8"231.8mm
3 7/8"98.4 mm6 5/8"168.3mm9 1/4"235.0mm
4"101.6 mm6 3/4"171.5mm9 1/2"241.3mm
4 1/8"104.8 mm6 7/8"174.6mm9 5/8"244.5mm
4 1/4"108.0 mm7"177.8mm9 3/4"247.7mm
4 1/2"114.3 mm7 1/8"181.0mm9 7/8"250.8mm
4 5/8"117.5 mm7 1/4"184.2mm10"254.0mm
4 3/4"120.7mm7 3/8"187.3mm10 5/8"269.9mm
4 7/8"123.8mm7 1/2"190.5mm11 1/2"292.1mm
5"127.0mm7 5/8"193.7mm12"304.8mm
5 1/8"130.2mm7 3/4"196.9mm12 1/4"311.2mm
5 1/4"133.4mm7 7/8"200.0mm12 1/2"317.5mm
5 3/8"136.5mm8"203.2mm13 3/4"349.3mm
5 1/2"139.7mm8 1/8"206.4mm14"355.6mm
5 5/8"142.9mm8 1/4"209.6mm14 3/4"374.7mm
5 3/4"146.1mm8 1/2"215.9mm15"381.0mm
5 7/8"149.2mm8 5/8"219.1mm15 3/4"400.1mm
6"152.4mm8 3/4"222.3mm17 1/2"444.5mm
Connection thread2 3/8", 2 7/8", 3 1/2", 4 1/2", 6 5/8" API Pin
Bits profilesStepped and chevron
Numbers of wingsThree wings and four wings


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