rock drill bits for sale, brand-new and used.

New 3 pieces of diameter 5/16" inch (close to 8mm) diamond coated twist drill bits. The total length is 5 inch (125mm) long Working length is 3-5/12 inch (80mm). ALL working length is diamond coated, more long lasting.

New Bosch Hand Tools Durable and attractive case for easy storage Wide range of accessories: all in one set Set Contents: 9 Rock drill, 6 Socket essays, 1 Countersinks 1 magnetic bit holder 8 wood drill 29 screwdriver bits 8 Metal HSS-R 2 Spade 1 magnetic rod 1 jackknife 1 angle screwdriver 1 case

Berent Quality SDS Hardened Plus Hammer Drill Bits 9 x Concrete Drill Bits / Rock Drilling Drop forged, fully hardened and heat treated for strength and durability 8mm x 160mm, 14mm x 350mm, 16mm x 350mm, 18mm x&nb

How It Works While the amazing Cold Weld™ Electronic Spark Deposition Technology is very simple in function, here is a technical overview to better explain the process. 10-300 volts of direct electric current (DC) is generated from 120 VAC (standard wall outlet current) and is stored in a series of capacitors within the equipment.

This sale is for a package of 5 Carbide Drill Bits, 0.125" in size, from T-Tech. It is sized for a 0.125" spindle.

This sale is for a package of 5 Carbide Drill Bits, 0.0595" in size, from T-Tech. It is sized for a 0.125" spindle.

This sale is for a package of 5 Carbide Drill Bits, 0.0400" in size, from T-Tech. It is sized for a 0.125" spindle.

This sale is for a package of 10 Carbide Drill Bits, 0.0320" in size, from T-Tech. It is sized for a 0.125" spindle.

Company profile We are a China dental supplier carrying a full line of high quality product, all items are getting from the factory directly, their quality is insured by our return policy and our full-courage warranty! If they have any quality problem we can offer you a full refund. Preview QUANTITY UNITE PRICE TOTAL VALUE SHIPPING 1PC $9.49 $9.49