Sealey pipe threading kit 1 2 1 1 4 bspt sealey ptk991 ratchet type pipe threading kit with cassette style die heads lightweight design with four tool steel cutting bits snap in die cassettes allow fast interchange between pipe sizes suitable for iron and stainless steel pipe twin ratchet pawl head assembly with free run facility supplied in carry case sealey ptk991 pipe threading kit 1 2 1 1 4 bspt