1. A bit for enlarging the upper part of a hole
   - countersink, countersink bit

Type of: bit

Encyclopedia: Counterbore

• St Valentine's Day
• st.
• St. Ambrose
• St. Andrew
• St. Andrew's cross
• St. Anselm
• St. Anthony's cross
• St. Athanasius
• St. Augustine
• St. Augustine grass
• St. Baeda
• St. Barbara's herb
• St. Basil
• St. Basil the Great
• St. Beda
• St. Bede
• St. Benedict
• St. Boniface
• St. Bride
• St. Bridget
• St. Brigid
• St. Bruno
• St. Christopher
• St. Christopher-Nevis
• St. Cloud