Mounted on sturdy steel shanks, these felt buffing bob assortments really get into the tight spots. Great for putting the final touches on intricate pieces where larger buffs simply will not reach. All are made of long-lasting hard felt and will work well with any of our buffing compounds. Great for removing residue left from buffing. A perfect accessory for the Pro Craft Motors (13305 and 13328). These 1/4" shank buff bobs are ideal for trim and engine component buffing. Maximum recommended RPM 15,000.