Seller's Note: Please Note That Some Customers Have Used Micrometers To Measure The Diameter Of The 0.3mm Drill Bits From This Set And Found Discrepancies, Such As A Measurement Of 0.6mm. Given The Set's Price Point Of Under $13.00, Some Deviations In Specifications Are 100% Expected. If Precise Measurements Are Critical For Your Needs, It May Be Advisable To Consider Higher-Priced, More Accurate Alternatives. Please Regard This As A DIY Hobby Tool Only, Instead Of A Precision Instrument.

About this item aluminum hand drill punch holes in plastic,wood.A drill rotary tool for electronic assembling, model making, tool-making, jewelry making, woodworking, screw DIY craft and other drilling applications. Great for crafts, jewelry, watch making.Mini hand drill and 20-piece twist drill bits are made of aluminium alloy, plastic and high-speed steel, which are durable,sturdy enough for drilling holes on the wood, plastic, bones, horns, amber, and olives, get ready for any hobbies or precision jobs. COMPLETE 20 PIECE SET - Mini Drill Bit Set comes complete with a range of small diameter twist drills sizes 0.3mm 0.35mm 0.4mm 0.45mm 0.5mm 0.55mm 0.6mm 0.65mm 0.7mm 0.75mm 0.8mm 0.85mm 0.9mm 0.95mm 1.0mm 1.2mm 1.3mm 1.4mm 1.5mm 1.6mm and therefore is preferred by Professional Craftsmen, Model Makers, Hobbyists, Jewelers, and Do-It-Yourself enthusiasts, and is a Must Have for all your drilling tasks. .20pc 0.3mm-1.6mm Twist Drill Bit.Material: High Speed SteelHand drill:Material: Aluminium Alloy.chuck Clamping Range:0.3-3mm Mini hand drill and 20-piece twist drill bits are made of aluminium alloy, plastic and high-speed steel, which are durable,sturdy enough for drilling holes on the wood, plastic, bones, horns, amber, and olives, get ready for any hobbies or precision jobs.

Manual measurement, please allow slight errors on size.