10Pcs Micro Taps Bit Small Hand Screw Thread Taps M1-M3.5 Hss Mini Metric, 1/4'' Specifications: Thread Tap Material: High speed steel Tap Wrench Material: Bearing steel Thread Tap Size: M1 M1.2 M1.4 M1.6 M1.7 M1.8 M2 M2.5 M3 M3.5 Tap Wrench Size: M1-M8/1/16" - 1/4"(UNC/UNF) Package Including: 10pc Straight Thread Tap 1pc Tap Wrench ?Material?The small taps are made of high speed steel (HSS6542), high hardness, anti-rust, has excellent for capability and durability ?10pcs Metric Tap Size? M1 x 0.25, M1.2 x 0.25, M1.4 x 0.3, M1.6 x 0.35, M1.7 x 0.35, M1.8 x 0.35, M2 x 0.4, M2.5 x 0.45, M3 x 0.5, M3.5 x 0.6 ?Adjustable Tap Wrench? M1-M8 (Mertic)/ 1/16" - 1/4"(UNC/UNF) / 2mm-7mm, designed to be used with taps or reamers, handles are long to provide more leverage than T-Handle wrenches ?Excellent Design?Standard metric thread design, sharp and cut accurate, no burr, provide rapid chip removal for efficient threading and smooth tapping ?Application?Used for machining nuts or other common threads, great set of taps for small crafts. Suitable for processing soft metal like aluminum and thin steel, wood and plastic, etc