Happy E-life 33 Pcs Magnetic Tamper Security Screwdriver Bits Set with Magnetic Extension Bit Holder Material:CEV6150 Torq bit sizes: 6mm, 8mm, 10mm; Spanner bit sizes: 4, 6, 8, 10mm. Tri-Wing bit sizes: #1, #2, #3, #4; SAE Hex bit sizes: 5/32", 9/64", 1/8", 7/64", 3/32", 5/64". Metric bit sizes: 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm; Torx bit sizes: T8, T10, T15, T20, T25, T27, T30, T35, T40. 2-1/4" Magnetic Extension Bit Holder.