# Zhongzuan (Chongqing ) Precision Tools Manufacturing Co., Ltd. | 15mm HSS Twist Drill Bit,DIN 1897 Twist Drill Bits,4241 hss straight shank twist drill, 12mm Step Cone Drill Bits,3 Piece Step Cone Drill Bits,Pagoda titanium high speed steel step bit, 45mm diamond hole saw,Electroplating 45mm diamond hole saw,diamond tile drill bit 6mm, ## summary > Manufacturer, Brands: ZHONGZUAN, ZHONGZUAN is a professional manufacturer of drill bits and diamond tools in China., Established in 1995, Employees: 50~150, Annual sales: 5000000-10000000, Export ratio: 60% - 70%, Primary markets: North America, Western Europe, Eastern Europe, Eastern Asia, Southeast Asia. ## Company Information * [Company Profile](https://www.metaldrillingbit.com/aboutus.html): Overview, history, teams and core capabilities. * [Factory & Manufacturing](https://www.metaldrillingbit.com/factory.html): Production capacity, OEM/ODM capabilities, and R&D strength. * [Quality Control](https://www.metaldrillingbit.com/quality.html): ISO certifications, quality standards, and compliance. * [Contact Us](https://www.metaldrillingbit.com/contactus.html): Global offices, inquiries, and support channels. ## Product Category * [Metal Drilling Bit](https://www.metaldrillingbit.com/supplier-464868-metal-drilling-bit): Keywords: 135 Degree Metal Drilling Bit,25.5mm cast iron drill bit,ISO9001 Metal Drilling Bit. * [HSS Drill Bit](https://www.metaldrillingbit.com/supplier-463162-hss-drill-bit): Keywords: 135 degree split point drill bit,DIN 338 cobalt drill bits for cast iron,Fully Ground Twist Drill Bits. * [Wood Drill Bits](https://www.metaldrillingbit.com/supplier-3082612-wood-drill-bits): Keywords: Wood Paddle Spade Drill Bits,25mm Wood Drill Bits,Hardwood Plastic Wood Drill Bits. * [Diamond Core Bit](https://www.metaldrillingbit.com/supplier-463159-diamond-core-bit): Keywords: 100mm Diamond Hole Saws,80mm ceramic tile hole cutter set,14mm granite countertop hole saw. * [Tile Drill Bits](https://www.metaldrillingbit.com/supplier-3074578-tile-drill-bits): Keywords: 10mm porcelain tile drill bit,Triangle Shank Metal Drilling Bit,Tungsten Carbide Metal Drilling Bit. * [Masonry Drill Bits](https://www.metaldrillingbit.com/supplier-3082618-masonry-drill-bits): Keywords: Tungsten Carbide Drill Bit,12mm Masonry Drill Bits,Tipped Masonry Drill Bit. * [Annular Cutters](https://www.metaldrillingbit.com/supplier-463167-annular-cutters): Keywords: Triangle Shank hole saw for steel plate,K20 6 inch carbide hole saw,CE 6 inch carbide hole saw. * [Metal Hole Saw](https://www.metaldrillingbit.com/supplier-463165-metal-hole-saw): Keywords: HSS M42 Bi Metal Hole Saw,100mm 4 inch hole saw for stainless steel,Yellow metal hole saw cutter set. * [Wet Polishing Pad](https://www.metaldrillingbit.com/supplier-463171-wet-polishing-pad): Keywords: OEM 5 inch diamond polishing pads,Black granite marble polishing pads,Green resin bond polishing pad. * [Dry Polishing Pad](https://www.metaldrillingbit.com/supplier-463172-dry-polishing-pad): Keywords: Blue 800 grit diamond pad,CE diamond polishing pads for angle grinder,4in granite polishing pads for angle grinder. * [Concrete Polishing Pad](https://www.metaldrillingbit.com/supplier-463173-concrete-polishing-pad): Keywords: 100 grit 80mm polishing pad,7 inch concrete polishing pads,OEM 3 inch polishing pads. * [Ceramic Saw Blade](https://www.metaldrillingbit.com/supplier-463169-ceramic-saw-blade): Keywords: 1.8mm 9 inch stone cutting disc,22.23mm Ceramic Saw Blades,OEM oscillating tool ceramic tile blade. * [Diamond Concrete Saw Blade](https://www.metaldrillingbit.com/supplier-463161-diamond-concrete-saw-blade): Keywords: porcelain cutting disc 300mm,CE Diamond Concrete Saw Blades,12 inch diamond concrete saw blade. * [Stone Circular Saw Blade](https://www.metaldrillingbit.com/supplier-463170-stone-circular-saw-blade): Keywords: 2.6mm Stone Circular Saw Blade,2.2mm Stone Circular Saw Blade,1.4mm Stone Circular Saw Blade. * [HSS Hole Saw](https://www.metaldrillingbit.com/supplier-463166-hss-hole-saw): Keywords: hss hole saw cutter 20mm,Triangle Shank wood hole cutter bit,ISO9001 hss hole saws. * [Glass Tile Cutter Tool](https://www.metaldrillingbit.com/supplier-463168-glass-tile-cutter-tool): Keywords: Blue Glass Tile Cutter Tool,110KG Glass Tile Cutter Tool,145mm Glass Tile Cutter Tool. ## Featured Products * [YG10 Stainless Steel Hole Saw Carbide Hole Saw For Metal](https://www.metaldrillingbit.com/sale-14326518-yg10-stainless-steel-hole-saw-carbide-hole-saw-for-metal.html): Keywords: 127mm carbide hole saw for metal,YG10 carbide hole saw for metal,75mm tct hole saw kit. * [Gold Corrugated Brick Saw Blade Stone Circular Saw Blade For Cutting Marble](https://www.metaldrillingbit.com/sale-14338164-gold-corrugated-brick-saw-blade-stone-circular-saw-blade-for-cutting-marble.html): Keywords: Gold 16 inch saw blade,corrugated 16 inch saw blade,Marble Cutting 400mm circular saw blade. * [Red Hot Pressed Teeth Diamond Cutting Disc Ceramic Saw Blade](https://www.metaldrillingbit.com/sale-14337804-red-hot-pressed-teeth-diamond-cutting-disc-ceramic-saw-blade.html): Keywords: circular saw blade for ceramic tile,1.6mm circular saw blade for ceramic tile,red 180mm tile cutting disc. * [Orbital Sander Diamond Burnishing Pads Concrete Polishing Pad](https://www.metaldrillingbit.com/sale-14367581-orbital-sander-diamond-burnishing-pads-concrete-polishing-pad.html): Keywords: concrete polishing pads for orbital sander,10in concrete polishing pads for orbital sander,Stone Polishing wet grinder pad. * [Hss Step Drill Bit Set Metal Drilling Bit For Aluminum Alloy Drilling](https://www.metaldrillingbit.com/sale-14333859-hss-step-drill-bit-set-metal-drilling-bit-for-aluminum-alloy-drilling.html): Keywords: 12mm Step Cone Drill Bits,3 Piece Step Cone Drill Bits,Pagoda titanium high speed steel step bit. * [DIN338 M35 Cobalt Drill Bits Standard Twist Drill BitsFor Drilling Metal](https://www.metaldrillingbit.com/sale-14336957-din338-m35-cobalt-drill-bits-standard-twist-drill-bitsfor-drilling-metal.html): Keywords: 25mm twist drill bits for metal,ISO9001 twist drill bits for metal,DIN 338 m35 cobalt drill bit set. * [M14 Threaded Shank Brazed Porcelain Tile Hole Cutter Diamond Hole Saws](https://www.metaldrillingbit.com/sale-14344256-m14-threaded-shank-brazed-porcelain-tile-hole-cutter-diamond-hole-saws.html): Keywords: 10mm Brazed Diamond Hole Saw,Wax Inside Brazed Diamond Hole Saw,M14 threaded shank drill bits. * [M35 Cobalt Spiral Flute Step Drill Bit Step Cone Drill Bits](https://www.metaldrillingbit.com/sale-14326638-m35-cobalt-spiral-flute-step-drill-bit-step-cone-drill-bits.html): Keywords: Stainless Steel Step Cone Drill Bits,HSS 6542 Step Cone Drill Bits,M35 Cobalt spiral flute step drill bit. * [DIN1897 4241 HSS Twist Drill Bit Straight Shank For Wood Drilling](https://www.metaldrillingbit.com/sale-14336635-din1897-4241-hss-twist-drill-bit-straight-shank-for-wood-drilling.html): Keywords: 15mm HSS Twist Drill Bit,DIN 1897 Twist Drill Bits,4241 hss straight shank twist drill. * [Diamond Tip Hole Saw Bit Diamond Hole Saws For Drilling Marble](https://www.metaldrillingbit.com/sale-14313264-diamond-tip-hole-saw-bit-diamond-hole-saws-for-drilling-marble.html): Keywords: 45mm diamond hole saw,Electroplating 45mm diamond hole saw,diamond tile drill bit 6mm. ## 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