Hardened CRV steel bits. 3mm, 4mm & 5mm HEX sizes, T20 & T25 TORX 1/4" bit sizes. Also perfect for most brands of torque wrenches with the optional adapter below.

Lightest, Strongest most versatile portable tool! Reversible ratchet with Quick-Disc thumb wheel. Handle is a Prestalever Tire Lever! Carry only the bits you need w/trim-able bit carrier. Patented Ratchet Mechanism Stronger than all others. Patented 1/4" Bit Retention with Push-to-Remove Hole. Hex: 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm TORX: T6, T8, T10, T15, T20,T25, T30 Screwdrivers: PH0, PH1, PH2 1/8 flat, 3/16 flat

Prestaratchet advances the art of wrenching bicycles. Consider the irony of using an Allen or Torx key on your expensive and delicate bike parts. Tools like that come free with un-assembled furniture. Isn’t your bike worthy of better? Prestaratchet is faster, safer, less expensive, longer lasting and more comfortable than any key. Compatible with 1/4" bits.

Fits all 1/4-inch socket-type torque wrenches for use with the Prestacycle Bicycle Bit Set. Prestacycle's bits cost 1/10 the price of buying socket head sets to meet all the requirements of bicycles. Using bits allows you to perform initial installation with Prestacycle's reversible mini ratchet – then leave the bit inside the job – remove the mini ratchet – and connect your torque wrench onto the bit to finish final tightening.