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Tapered bits 7° H22 Button bit, long skirt diameter 40mm 8 pieces Ballistic

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Tapered bits 7° H22 Button bit, long skirt diameter 40mm 8 pieces Ballistic

Brand Name : Legend Drill
Model Number : taper drill bit
Certification : SGS
Place of Origin : China
MOQ : 1 piece
Price : Negotiable
Payment Terms : T/T west union L/C, D/P, D/A, Western Union, MoneyGram
Supply Ability : 5000 pieces per month
Delivery Time : 10-15 days
Packaging Details : wood package
brand : legend drill
Air Pressure : 3-6 Bar
Taper angle : 7° H22 ,12° H22, 11° H22, 7° H25,
Material : Carbon Steel Or Tci Or Diamond
Bit type : Button bit, long skirt
Color : As Request
Bit head design : Seven buttons, two front flushing holes
Steel grade : 50R61 (taper hardening and zink coating)
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Tapered bits 7° H22 Button bit, long skirt diameter 40mm 8 pieces Ballistic buttons

Description:

1. Shattered buttons
Over drilling in soft non-abrasive
material leaves a shiny surface on the
buttons. Under magnification, a network of
microscopic cracks can typically be found.
Regularly inspect the bits and re-profile the
buttons to remove these cracks from the
surface of the carbides once the skin on the
carbides starts to show
(4) Check that bit diameters are smaller
than the hole before attempting to clean
or deepen a hole under these conditions.
Do not force bits if jamming occurs.
Retract until rotating freely then advance
slowly with moderate rotation. If this
fails, use a scrapped bit or grind down
the gauge buttons of the bit to reduce the
diameter sufficiently to pass or remove the
obstruction
Applications:

When it is used to treat peat soil or groundwater with erosive, groundwater flow rate and gushing water, it is advisable to test its applicability.It is widely used in silt, silty soil, cohesive soil, silty clay, (clay), silt soil due to the influence of soil layer, soil particle size, soil density, hardener viscosity and hardener hardening time. (Asian sand), sand, loess and artificial fills in the soil filling and even gravel soil and other soil layers.

It is widely used in silt, silty soil, cohesive soil, silty clay, (clay), silt soil due to the influence of soil layer, soil particle size, soil density, hardener viscosity and hardener hardening time. (Asian sand), sand, loess and artificial fills in the soil filling and even gravel soil and other soil layers.
It can be used for foundation reinforcement of existing buildings and new buildings, or as foundation for seepage prevention; it can be used as temporary measures during construction (such as deep foundation pit retaining or water retaining, waterproof curtain, etc.) It can also be used as foundation reinforcement and anti-seepage treatment for permanent buildings.

Feature Advantage:

Selected high-quality steel: the use of domestic high-quality steel, so that the submerged hole drill body part of the hardness is higher, durable.
Wear-resistant alloys are made of high-quality wear-resistant hard alloys suitable for rock formations of various hardnesses.
Advanced processing equipment: advanced CNC machining equipment, optimized product processing technology, DTH drill bit size is more standard, higher precision, more uniform tooth.
1 The alloy column can be arranged reasonably according to the force condition;
2 It can be self-grinding during the perforation process, so that the drilling speed of the drill bit tends to be stable;
3 The embedding process is simple, and it can be embedded by cold pressing.
4 When the column teeth wear 20%, the drill can still continue to work;



Specifications:

DiameterFace TypeButtons x Dia (Inch)Flushing
Holes
Weight Approx.
MmInchOuterInnerFrontKgs.Lbs.
32Concave6 x 143 x 133 x 1234.7/
34Concave6 x 143 x 134 x 1235.2/
36Concave

6 x 14

3 x 144 x 1236.2/
38Concave9 x 143 x 145 x 1237.8/
40Concave9 x 143 x 145 x 1238.4/



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