Manufacturing Companies for Hss Twist Drills - Square Shank Crown Cutter Tip Rotary Hammer Drill Bit

Manufacturing Companies for Hss Twist Drills - Square Shank Crown Cutter Tip Rotary Hammer Drill Bit – Jiesheng

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Manufacturing Companies for Hss Twist Drills - Square Shank Crown Cutter Tip Rotary Hammer Drill Bit – Jiesheng Detail:

Application

● Drilling holes for concrete, stone, rock or brick.

● Drilling holes for post-installed rebar connections.

● Drilling drainage holes for drying out buildings.

● Drilling through-holes when you need to have an installation of pipes and cables.

● Drilling holes for screw installation.

Technical Data

● Material: 40CR+YG8C.

● Head Material Composition: Tungsten Carbide.

● Production Process: High temperature quenching, Surface sandblasting, Manual welding.

● Connection End: Square Shank

● Flute or Slot: Double (Quadruple helix)/ Single (Double helix)

● Type of Tip: Crown Tip (Cross cutter)

● Number of cutting edges: 4.

● Overall Length: 110-1200 mm (Normal length) – It can be customized.

● Diameter: 6-38 mm (Normal size) – It can be customized.

Product Advantages

1. High Strength Material- concrete drill bit is made of carbon steel material and carbide tip, can avoid breakage, resist wear, oxidation and corrosion.

2. Structure Design- design with cross type carbide tip head, allows it fast and remove drilling dust and debris, ensure penetration. U-shaped flute design cleans debris out fast, reduced wear.

3. Widely Used- best for drilling holes in concrete, brick, stone and masonry.

Size

Dia.	Overall Length
14, 16	120
6, 8, 9, 10, 12, 14, 16	150
6, 8, 10, 12, 14, 16, 18, 20, 22, 25	200
8, 10, 12, 14, 16, 18, 20, 22, 25	280
10	300
8, 10, 12, 14, 16, 18, 20, 22, 25, 28, 30, 32, 35, 38	350
8, 10, 12, 14, 16, 18, 20, 22, 25, 28, 30, 32, 35, 38	450
8, 10, 12, 14, 16, 18, 20, 22, 25, 28, 30, 32, 35, 38	500
8, 10, 12, 14, 16, 18, 20, 22, 25, 28, 30, 32, 35, 38	600
10, 12, 14, 16, 18, 20, 22, 25, 26, 28, 30, 32, 35, 38	700
10, 12, 14, 16, 18, 20, 22, 25, 28, 30, 32, 35, 38	800
8, 10, 12, 14, 16, 18, 20, 22, 25, 28, 30, 32, 35, 38	1000
8, 10, 12, 14, 16, 18, 20, 22, 25	1200

*1) unit: mm

*2) other sizes free to consult

Packing

1 x Drill Bit / Plastic Tube

Packing can also be customized according to your requirements. Welcome to contact.

Instructions for Use

1. When drilling, keep the bit perpendicular to the processed object to avoid damaging the bit and yourself.

2. In the unlikely event of breakage, the drill bit will be considered for replacement as long as the wear mark on the helix is still visible. Timely changes will make your job easier.

3. For square sized electric or rotary hammer.

Concrete	Do not use lithium electric drill less than 6V	Frequently used
Reinforced Concrete	Please do not hit the steel bar in the process of use	Frequently used
Hard Stone	Please add water to use	Generally used
Normal Stone	Need to use impact function	Frequently used
Hard Rock	Need to add liquid cooling	Generally used
Normal Rock	Need to use impact function	Frequently used
Masonry	Can be shocked or not shocked,Moderate force during function drilling	Frequently used
Usual Masonry	Moderate force without impact function	Frequently used

Product detail pictures:

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