(Imperial Units, Not Metric)1/16" 1/8" 5/32" 3/16" 1/4" 5/16" 3/8" 1/2" Hss 4 Product Details - Material: HSS - 4 Flute, Straight Shank, Square Nose - Suitable for aluminium, cast iron, copper, magnesium alioy, plastics, wood etc Square Nose Endmills Size: 1/16'' Cutter: Blade Diameter=1/16'', Shank Diameter=1/4'', Flute Length=9/16'', Overall Length=2-3/8''; 5/32'' Cutter: Blade Diameter=5/32'', Shank Diameter=1/4, Flute Length=1/2'', Overall Length=2-3/8''; 1/8'' Cutter: Blade Diameter=1/8'', Shank Diameter=1/4'', Flute Length=7/16'', Overall Length=2-3/8''; 3/16'' Cutter: Blade Diameter=3/16'', Shank Diameter=1/4'', Flute Length=9/16'', Overall Length=2-3/8''; 1/4'' Cutter: Blade Diameter=1/4'', Shank Diameter=1/4'', Flute Length=3/4'', Overall Length=2-1/2''; 5/16'' Cutter: Blade Diameter=5/16'', Shank Diameter=5/16'''', Flute Length=7/8'', Overall Length=2-5/8''; 3/8'' Cutter: Blade Diameter=3/8'', Shank Diameter=3/8'', Flute Length=1'', Overall Length=2-3/4''; 1/2'' Cutter: Blade Diameter=1/2'', Shank Diameter=1/2'', Flute Length=1-1/2'',Overall Length=3-3/8''. Note: Due to the different measurement methods, the size may have 1-2cm error. Package includes: 8 x End Mill Cutter ? MATERIAL: HSS ? Cutting Diameter : 1/16" 1/8" 5/32'' 3/16" 1/4" 5/16" 3/8" 1/2" ? 4Flute,Full grinded, high abrasion resistance, obtain accuracy and fine finish ? Suitable for aluminium, cast iron, copper, magnesium alioy, plastics, wood etc ? Package: 8 Pcs Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.