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30mm drill bit

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Hole drilling machine, drilling machine for paper, book 1.Drilling diameter from 3mm to 9mm. 2.Auto deep control, blind hole can also be maken. 3.Precision ( hole straightness) is ...
Guangdong, china
Verified
Wholesale Poly Anion Oil Drilling Grade Sodium Carboxy Methyl Cellulose Product Description 1. Protect the wall of oil well, prevent mud flowing away and carry crumbs. 2. Protect ...
Guangdong, china
Verified
Aluminum Entry For Common PCB Drilling Thickness 0.07 / 0.13 / 0.15 / 0.18 mm Special Features: --Protecting The Surface Of PCB Board And Good For Locating Of Drilling Bit -...
Guangdong, china
Verified
ER Spring Collet CNC Collet Used For ER Collet Chucks To Clamp Drlls And Mills Ⅰ​. Features And Advantages Accuracy:≦0.005. Carbon depth:0.8~1.0mm. Roundness:<0.8μm. Surface finish ...
Guangdong, china
Member
Normal Drilling Application Circuit Board Drilling Aluminum Entry Thickness 0.07 / 0.13 / 0.15 / 0.18 mm Special Features: -- Protecting The Surface Of PCB Board And Good For ...
Guangdong, china
Verified
ER11 High Precision CNC Collet For Tool Holder BBT / BT / HSK / SK / ISO In Nut​ Ⅰ​. Features And Advantages Runout < 0.005mm. Carbon depth:0.8~1.0mm. Roundness:<0.8μm. Surface ...
Guangdong, china
Member
Aluminum Entry Common Pcb Board Drilling High-Class PCB Drilling Entry Special Features: -- Protecting The Surface Of PCB Board And Good For Locating Of Drilling Bit -- Excellent ...
Guangdong, china
Verified
ER Spring Collet CNC Collet Used For ER Collet Chucks To Clamp Drlls And Mills Ⅰ​. Features And Advantages Runout:≦0.005. Carbon depth:0.8~1.0mm. Roundness:<0.8μm. Surface finish ...
Guangdong, china
Member
Cut to Size PCB Drilling Aluminum Entry Thickness 0.07 / 0.13 / 0.15 / 0.18 mm Special Features: -- Protecting The Surface Of PCB Board And Good For Locating Of Drilling Bit -- ...
Guangdong, china
Verified
Excellent Heating Conductivity Circuit Board Drilling Aluminum Entry Thickness 0.07 / 0.13 / 0.15 / 0.18 mm Special Features: --Protecting The Surface Of PCB Board And Good For ...
Guangdong, china
Verified
PCB Drilling Entry Aluminum Material PCB Surface Protecting Thickness 0.07 / 0.13 / 0.15 / 0.18 mm Special Features: -- Protecting The Surface Of PCB Board And Good For Locating Of ...
Guangdong, china
Verified
Aluminum Entry Special PCB Drilling Entry Good Heat Transfer Thickness 0.07 / 0.13 / 0.15 / 0.18 mm Special Features: --Protecting The Surface Of PCB Board And Good For Locating Of ...
Guangdong, china
Verified
PCB Surface Protecting Common PCB Drilling Aluminum Entry Thickness 0.07 / 0.13 / 0.15 / 0.18 mm Special Features: -- Protecting The Surface Of PCB Board And Good For Locating Of ...
Guangdong, china
Verified
Drill Waer & Breakage Reduced PCB Drilling Melamine Backup Board Thickness 1.6 / 2.1 / 2.5 mm Special Features: --UV Coating,0 Pollution --Flat And Smooth On Surface --Low ...
Guangdong, china
Verified
Burrs Minimized Sharp White Melamine Backup Board For Pcb Drilling Thickness 1.6 / 2.1 / 2.5 mm Special Features: -- UV Coating,0 Pollution -- Flat And Smooth On Surface -- Low ...
Guangdong, china
Verified
White Melamine Coating Multi-Layer PCB Drilling Backup Board Thickness 1.5/2.0/2.5mm Special Features: -- UV Coating,0 Pollution -- Flat And Smooth On Surface -- Low Temperature ...
Guangdong, china
Verified
Hole Verification White Melamine Backup Board For Pcb Drilling Thickness 1.6 / 2.1 / 2.5 mm Special Features: -- UV Coating,0 Pollution -- Flat And Smooth On Surface -- Low ...
Guangdong, china
Verified
5G PCB Drilling Malamine Coating White Backup Board Thickness 2.0/2.5 mm Special Features: --UV Coating,0 Pollution --Flat And Smooth On Surface --Low Temperature Drill,Reduce Bit ...
Guangdong, china
Verified
Heat Dissipated Melamine Coating Backup Board For Pcb Drilling Thickness 1.6 / 2.1 / 2.5 mm Special Features: -- UV Coating,0 Pollution -- Flat And Smooth On Surface -- Low ...
Guangdong, china
Verified
HDI High Reliable Communication & Automotive PCB Drilling White Melamine Coating Backup Board Special Features: --Water-Based Environmental Protection Materials,0 Pollution --Flat ...
Guangdong, china
Verified
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