When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
9/32-24 UN Left Hand 52100 HCS Die, Stanley Plane Restoration Tools, see #8A in blue on the attached Stanley Parts DiagramThis Die will let you thread and chase the plane iron depth position stud that allows adjustment of the double plane iron in reference to the frog
This 52100 High Carbon Steel (HCS) Die has a 1 inch external diameter and is engineered to cut an A2 class of thread, chamfered on one side to allow easy starting and no chamfer on the other side to allow threading or chasing very close to the bottom of a stud or head of a screw
Unified or Unified National aka UN is a 60 degree thread angle used by Stanley on this size thread
52100 High Carbon Steel (HCS) is a premium grade of carbon steel with increased toughness at a lower price point than High Speed Steel.High SpeedSteel (HSS) is a broad description of steel grade. A chair made of wood is also a broad description. Is the chair made of soft wood like pine or something hard like hickory? Our HSS taps and dies are made from M2 HSS, a premium grade tool steel utilizing 0.85% carbon (C) 4.15% chromium (Cr) 6.15% tungsten (W) 5.0% molybdenum (Mo) and 1.85% vanadium (V). These added elements provide a high level of hardness and increased resistance to wear.
Cutting fluid reduces friction and helps produce smoother threads. *** Please wear your safety glasses ***We will combine shipping on multiple items and refund the savings. Receive a $3.00 refund on this item when you order more than one item for shipping at the same time.
MWTCA organization members will receive a 10% discount refund. Send us a message and let us know you are a member. We will send your refund promptly through . Thank you for supporting Mid West Tool Collectors Association.
© 2026 GTI
