Manufactured from carbon steel. Use for accurate tapping and reaming in tight spaces. Fits onto 3/8"Sq drive ratchets. Knurled ring twists to help tighten taps securely. Fits taps with shank size up to 10mm. Manufactured from carbon steel. Use for accurate tapping and reaming in tight spaces. Fits onto 3/8"Sq drive ratchets. Knurled ring twists to help tighten taps securely. Fits taps with shank size up to 10mm. Maximum Square Size: 4mm, 7mm.
