Quick Exchange- A new generation of alloy chuck for a better experience of simplicity and ease of exchage. This hand drill is designed to fit drill bits with 3.175mm shank only. Two-Way Multifunction Cap-Providing proper protection for you and your drill bits. May be used as extension when connected to the rear end so that you can adjust to best fit specific job. ANTI-Rolling Design- An embedded magnetic locking system prevents accidental falling off when changing drill bits. Super Value Pack- With 5pcs Tungsten Steel Drill Bits 0.5/0.8/1.0/1.5/2.0 mm Material: plastic + metal Color: as shown Package Contents: 1 set Hand Drill Set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.