Bridge Pin Hole Reamer Tools T-Handle Tapered 6 Fluted Acoustic Guitar Woodworker Cutting Tool Core Drill Bit DIY Pickup Luthier Tool 3-13mm Features: The bridge pin hole reamer is 6 fluted with a T-Handle and comes with handle grips for extra leverage to help keep the holes round. Made of hardened carbon steel and ground steel edge's, very durable. This steel reamers has the properly tapers the holes for bridge pins or endpins. Suitable for tapering hole on the wood board, wood sink holes, chamfers, inverted taper. DIY supplies for woodworking. Specifications: Material: 45# Steel Color: As picture Usage: Hinge taper, for use in wood sink holes, chamfers, back taper Size: 3-13mm 1 : 10 Item Size: 142 * 13.5mm Item Weight: 91g / 3.2oz Package Size: 190 * 40 * 14mm Package Weight: 92g / 3.2oz Packing List: 1 * 6 Fluted Bridge Pin Hole Reamer Tapered Woodworker Cutting Tool