ZSHJGJR Archery Arrow Spinner Arrow Spine Inspector for Shaft Straightness,Vane Tuning and Broadhead Spining, Aluminum Arrow Straightness Detector Tool Arrow Spine Tester Arrow Accessory

Specification Item name: Archery Arrow Spine Tester Material: aluminum alloy Color: Silver Size: 30*5.5*6.5cm Weight: 15.8 OZ (449g)Package Includes: 1 x Arrow Spiner 1 x Shaft Cross-Section Polishing Assembly 2 x Adhesive Sandpapers

• 【USAGE】Check arrow straightness, correctly detect the balance straightness of your arrow, nock alignment, vane and feather balance, to ensure shooting accuracy better. Arrow straightness will influence the precision of your shot.
• 【STURDY & DURABLE】The main doby is made of aluminum, ensure long time use. Equipped with high precision SS Bearings – SS crowned ball bearings provide large surface to support the arrow and achieve allow smooth operation even under high pressure.rings provide large surface to support the and achieve allow smooth operation even under high pressure.
• 【HOW TO USE】Put the arrow support on the arrow measuring instrument and slowly rotate the shaft with your hand. Good straight arrows' arrowhead will stay steady. Fit for all kinds of arrows, such as carbon arrows, fiberglass arrows, aluminum arrows,
• 【GRIND BURS OF SHAFTS】Grind the Burs of Shafts – Include Arrow Shaft Section Polishing Assembly with 2 pcs of adhesive sandpapers to grind the burs on cross-section of shafts while checking the straightness.
• When DIY arrows by yourself and use them before cutting lengths to check for defects. Even after they have been cut and folded, they are rotated again for inspection. Notice: Excess glue at fletching time could cause an arrow to be out of balance.