These are 1/32" Drill Bits from Dremel. FEATURES: High-speed drill bits made from high-grade steel. Ideal for precise drilling applications in woods and soft materials. Best when used in conjunction with Dremel Model 212 Drill Press INCLUDES: 4 Drill Bits REQUIRES: Rotary Tool Drill Press Attachment #483 Collet (DRER1395) SPECS: Size: 1/32" (0.8mm) COMMENTS: Do not use these bits for drilling into very hard materials, such as glass or ceramics. kr8/1/02 ir/kh